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HTML

              
                <!--Ипотечный калькулятор-->
	<section id="mortgage-calculator-section">
		<div class="container">
			<div class="row mortgage-calculator">
					<div class="col-md-6 col-xs-12">
						<div class="form-group">
							<label for="object-price">Стоимость недвижимости</label>
							<div class="range-output">
								<input class="money text-input" id="object-price-output">
                                                                <input type="hidden" id="object-price-hidden">
							</div>
							<input type="range" list="object-price-tickmarks" min="500000" max="10000000" value="3500000" class="form-control-range" id="object-price">
							<datalist id="object-price-tickmarks">
							  <option value="500000" label="500 тыс.">
							  <option value="1000000">
							  <option value="1500000">
							  <option value="2000000">
							  <option value="2500000">
							  <option value="3000000">
							  <option value="3500000">
							  <option value="4000000">
							  <option value="4500000">
							  <option value="5000000">
							  <option value="5500000">
							  <option value="6000000">
							  <option value="6500000">
							  <option value="7000000">
							  <option value="7500000">
							  <option value="8000000">
							  <option value="8500000">
							  <option value="9000000">
							  <option value="9500000">
							  <option value="10000000" label="10 млн.">
							</datalist>
						</div>

						<div class="form-group">
							<label for="first-payment">Первоначальный взнос</label>
							<div class="range-output">
								<input class="money text-input" name="" id="first-payment-output">
                                                                <input type="hidden" id="first-payment-hidden">
							</div>
							<input type="range" list="first-payment-tickmarks" min="300000" max="5000000" value="1000000" class="form-control-range" id="first-payment">
							<datalist id="first-payment-tickmarks">
							  <option value="300000" label="300 тыс.">
							  <option value="500000">
							  <option value="1000000">
							  <option value="1500000">
							  <option value="2000000">
							  <option value="2500000">
							  <option value="3000000">
							  <option value="4500000">
							  <option value="5000000" label="5 млн.">
							</datalist>
							
						</div>

						<div class="form-group">
							<label for="years">Срок кредита</label>
							<div class="range-output">
								<input class="text-input" name="" id="years-output">
							</div>
							<input type="range" list="years-tickmarks" min="1" max="30" value="20" class="form-control-range" id="years">
							<datalist id="tickmarks years-tickmarks">
							  <option value="1" label="1 год">
							  <option value="30" label="30 лет">
							</datalist>
							
						</div>

						<div class="form-group">
							<label for="percent">Ипотечные программы</label>
							<p>Выберите ипотечную программу или введите % ставку</p>
							<div id="percent">
								<select id="bank-select">
									<option value="6.5" selected>Льготная ипотека для новостроек</option>
									<option value="4.9">Семейная ипотека</option>
									<option value="2.7">Сельская ипотека</option>
									<option value="6.5">Покупка квартиры в новостройке</option>
									<option value="8.9">Покупка вторичного жилья</option>
								</select>
								<div class="bank-percent">
									<input class="text-input-percent" id="bank-percent-span" value="6.5">%
								</div>
							</div>
						</div>
        </div>
					<div class="col-md-offset-1 col-md-5 col-xs-12">
						<div class="mc-item mc-item-first">
							<p>Сумма кредита</p>
							<p class="mc-item-number"><span id="credit-summ">2 500 000,00</span> ₽</p>
							<hr>
						</div>
						<div class="mc-item">
							<p>Ежемесячный платеж</p>
							<p class="mc-item-number"><span id="month-pay">18 639,33</span> ₽</p>
							<hr>
						</div>
						<div class="mc-item">
							<p>Ежемесячный платеж c нами</p>
							<p class="mc-item-number"><span id="month-pay-with-us">17 910,78</span> ₽</p>
						</div>
						<div class="mc-item mc-item-safe">
							<p>Сэкономьте на ипотеке до</p>
							<p class="mc-item-number"><span id="your-safe">174 852,85</span> ₽ <a href="https://kluch.me/2020/05/25/%d0%b8%d0%bf%d0%be%d1%82%d0%b5%d0%ba%d0%b0-%d1%87%d0%b5%d1%80%d0%b5%d0%b7-%d0%b0%d0%b3%d0%b5%d0%bd%d1%82%d1%81%d1%82%d0%b2%d0%be-%d0%bd%d0%b5%d0%b4%d0%b2%d0%b8%d0%b6%d0%b8%d0%bc%d0%be%d1%81%d1%82/" target="_blank" class="question" title="Как можно сэкономить на ипотеке с Ключом?"><span><i class="fa fa-question-circle" aria-hidden="true"></i></span></a></p>
						</div>
						<div class="mc-item-bottom">
							<p>Получите одобрение ипотеки<br>с этими условиями</p>
							<button type="submit" class="calc-submit-btn popmake-ipoteka-calc pum-trigger" id="calc-submit" style="cursor: pointer;">Подать заявку</button>
						</div>
					</div>
			</div>
		</div>
	</section>
              
            
!

CSS

              
                /* Калькулятор ипотеки */
#mortgage-calculator-section {
	margin-top:50px;
	margin-bottom:100px;
}
.mortgage-calculator {
	padding:70px;
	border-radius: 4px;
	box-shadow: 0px 2px 13px rgba(0, 0, 0, 0.08);
}
.mortgage-calculator #credit-purpose {
	width: 100%;
    background: #fff;
    border: 1px solid #ccc;
    height: 45px;
    margin-bottom: 10px;
}
.mortgage-calculator label {
	font-size:16px;
	color:#333;
}
.mortgage-calculator .range-output span {
	color:#333;
}
.mortgage-calculator datalist {
display: flex;
justify-content: space-between;
padding-top:7px;
}

.mortgage-calculator datalist option {
display: inline;
color: #ccc;
font-weight: 300;
font-size: 12px;
}
.money, .text-input {
  width:100%;
  border:none;
}
.text-input-percent {
  width:60%;
  border:none;
}
.mortgage-calculator input[type="range"] {
    width: 100%;
    height: 3px;
    border-radius: 4px;
    background: #00b3ff;
    outline: none;
    opacity: 0.7;
    -webkit-transition: .2s;
    transition: opacity .2s;
    border-top-left-radius: 0;
    border-top-right-radius: 0;
}
.mortgage-calculator input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 17px;
  height: 17px;
  border-radius: 50%; 
  background: #fff;
  border:2px solid #00b3ff;
  cursor: pointer;
}

.mortgage-calculator input[type="range"]::-moz-range-thumb {
  width: 25px;
  height: 25px;
  border-radius: 50%;
  background: #4CAF50;
  cursor: pointer;
}
.mortgage-calculator .range-output {
	border:1px solid #ccc;
	padding:10px;
	border-bottom: none;
	border-radius: 4px;
	border-bottom-left-radius: 0;
	border-bottom-right-radius: 0;
}
.mortgage-calculator #percent {
	display:block;
}
.mortgage-calculator #percent #bank-select {
	width: 80%;
    float: left;
    background: #fff;
    border: 1px solid #ccc;
    height: 42px;
}
.mortgage-calculator #percent .bank-percent {
	width: 15%;
    float: left;
    background: #fff;
    border: 1px solid #ccc;
    border-radius: 4px;
    padding: 9px;
    margin-left:5%;
    text-align: center;
    color: #04B040;
    font-size:16px;
}
.mortgage-calculator .mc-item-first {
	margin-top:27px;
}
.mortgage-calculator .mc-item p {
	line-height:1;
	color:#333;
}
.mortgage-calculator .mc-item p.mc-item-number {
	color:#04B040;
	font-size:22px;
}
.mortgage-calculator .mc-item-bottom {
	margin-top:40px;
}
.mortgage-calculator .mc-item-bottom p {
	font-size:18px;
	color:#333;
	font-weight: 500;
}
.mortgage-calculator .mc-item-bottom button {
	background:#00b3ff;
	color:#fefefe;
	border-radius: 4px;
	padding:13px 20px;
	border:none;
}
              
            
!

JS

              
                function btnClicked() {
document.getElementById('ipoteka-modal-form-span').innerHTML = "Льготная ипотека для новостроек от 6,5%";
document.getElementById('mortgage-program').value = "Льготная ипотека для новостроек от 6,5%";
}
function btn2Clicked() {
document.getElementById('ipoteka-modal-form-span').innerHTML = "Семейная ипотека от 4,9%";
document.getElementById('mortgage-program').value = "Семейная ипотека от 4,9%";
}
function btn3Clicked() {
document.getElementById('ipoteka-modal-form-span').innerHTML = "Сельская ипотека от 2,7%";
document.getElementById('mortgage-program').value = "Сельская ипотека от 2,7%";
}
function btn4Clicked() {
document.getElementById('ipoteka-modal-form-span').innerHTML = "Покупка квартиры в новосторойке от 3,7%";
document.getElementById('mortgage-program').value = "Покупка квартиры в новосторойке от 3,7%";
}
function btn5Clicked() {
document.getElementById('ipoteka-modal-form-span').innerHTML = "Покупка вторичного жилья от 8,9%";
document.getElementById('mortgage-program').value = "Покупка вторичного жилья от 8,9%";
}
	//Для калькулятора

	//округление
	var rounded = function(number){
    return +number.toFixed(2);
	}

	//вывод в денежный формат
	var moneyFormat = function(n) {
    return parseFloat(n).toFixed(2).replace(/(\d)(?=(\d{3})+\.)/g, "$1 ").replace('.', ',');
	}

	//Переменные вывода значений в правом столбце
	var creditSumm = document.getElementById("credit-summ");
	var credit;

	var monthPay = document.getElementById("month-pay");
	var monthly;

	var overPay;
	var overPayWithUs;
	var yourSafe = document.getElementById("your-safe");
	var monthPayWithUs = document.getElementById("month-pay-with-us");
	
	//Переменные для расчета ежемесячного платежа
	var monthSumm;
	var monthPercent;
	var ann;
	var monthPaySumm;



	//range стоимости объекта
	var slider = document.getElementById("object-price");
	var hidden = document.getElementById("object-price-hidden");
	var output = document.getElementById("object-price-output");

	output.value = moneyFormat(slider.value);

	slider.oninput = function() {
	  hidden.value = this.value;
	  output.value = moneyFormat(hidden.value);
	  //Подсчет суммы кредита
	  creditSumm.innerHTML = moneyFormat(this.value - firstPaymentSlider.value);
	  credit = this.value - firstPaymentSlider.value;
	  if(credit <= 0) {
	  	creditSumm.innerHTML = "0,00";
	  }

	  //Подсчет ежемесячного платежа
	  monthSumm = years.value * 12;
	  monthPercent = (percentSelect.options[percentSelect.selectedIndex].value / 12) / 100;
	  ann = (monthPercent * ((1 + monthPercent)**monthSumm)) / (((1 + monthPercent)**monthSumm) - 1);
	  monthPaySumm = credit * ann;

	  monthPay.innerHTML = moneyFormat(monthPaySumm);
	  monthly = rounded(monthPaySumm);
	  if(monthPaySumm <= 0) {
	  	monthPay.innerHTML = "0,00";
	  }

	  //Подсчет переплаты по кредиту
	  overPay = rounded(monthly * monthSumm - credit);

	  //Подсчет переплаты по кредиту с нами
	  var monthPercentWithUs = ((percentSelect.options[percentSelect.selectedIndex].value - 0.7) / 12) / 100;
	  var annWithUs = (monthPercentWithUs * ((1 + monthPercentWithUs)**monthSumm)) / (((1 + monthPercentWithUs)**monthSumm) - 1);
	  var monthPaySummWithUs = credit * annWithUs;
	  overPayWithUs = rounded(monthPaySummWithUs * monthSumm - credit);

	  //Подсчет сэкономленной суммы
	  monthPayWithUs.innerHTML = moneyFormat(monthPaySummWithUs);
	  yourSafe.innerHTML = moneyFormat(overPay - overPayWithUs);
	  if(monthPaySummWithUs <= 0) {
	  	monthPayWithUs.innerHTML = "0,00";
	  }

	  if(overPay - overPayWithUs <= 0) {
	  	yourSafe.innerHTML = "0,00";
	  }


	}

	output.oninput = function() {	
	  hidden.value = this.value.replace(/ /g, "").replace(",00", "");
	  slider.value = hidden.value;


	//Подсчет суммы кредита
	  creditSumm.innerHTML = moneyFormat(hidden.value - firstPaymentSlider.value);
	  credit = hidden.value - firstPaymentSlider.value;
	  if(credit <= 0) {
	  	creditSumm.innerHTML = "0,00";
	  }
	  //Подсчет ежемесячного платежа
	  monthSumm = years.value * 12;
	  monthPercent = (percentSelect.options[percentSelect.selectedIndex].value / 12) / 100;
	  ann = (monthPercent * ((1 + monthPercent)**monthSumm)) / (((1 + monthPercent)**monthSumm) - 1);
	  monthPaySumm = credit * ann;

	  monthPay.innerHTML = moneyFormat(monthPaySumm);
	  monthly = rounded(monthPaySumm);
	   if(monthPaySumm <= 0) {
	  	monthPay.innerHTML = "0,00";
	  }
	  //Подсчет переплаты по кредиту
	  overPay = rounded(monthly * monthSumm - credit);

	  //Подсчет переплаты по кредиту с нами
	  var monthPercentWithUs = ((percentSelect.options[percentSelect.selectedIndex].value - 0.7) / 12) / 100;
	  var annWithUs = (monthPercentWithUs * ((1 + monthPercentWithUs)**monthSumm)) / (((1 + monthPercentWithUs)**monthSumm) - 1);
	  var monthPaySummWithUs = credit * annWithUs;
	  overPayWithUs = rounded(monthPaySummWithUs * monthSumm - credit);

	  //Подсчет сэкономленной суммы
	  monthPayWithUs.innerHTML = moneyFormat(monthPaySummWithUs);
	  yourSafe.innerHTML = moneyFormat(overPay - overPayWithUs);
	  if(monthPaySummWithUs <= 0) {
	  	monthPayWithUs.innerHTML = "0,00";
	  }

	  if(overPay - overPayWithUs <= 0) {
	  	yourSafe.innerHTML = "0,00";
	  }
	}

	//range первоначального взноса
	var firstPaymentSlider = document.getElementById("first-payment");
	var firstPaymentOutput = document.getElementById("first-payment-output");
	var firstHidden = document.getElementById("first-payment-hidden");
	firstPaymentOutput.value = moneyFormat(firstPaymentSlider.value);

	firstPaymentSlider.oninput = function() {

	 firstHidden.value = this.value;
	 firstPaymentOutput.value = moneyFormat(firstHidden.value);

	 //Подсчет суммы кредита
	 creditSumm.innerHTML = moneyFormat(slider.value - this.value);
	 credit = slider.value - this.value;
	 if(credit <= 0) {
	  	creditSumm.innerHTML = "0,00";
	  }

	 //Подсчет ежемесячного платежа
	  monthSumm = years.value * 12;
	  monthPercent = (percentSelect.options[percentSelect.selectedIndex].value / 12) / 100;
	  ann = (monthPercent * ((1 + monthPercent)**monthSumm)) / (((1 + monthPercent)**monthSumm) - 1);
	  monthPaySumm = credit * ann;

	  monthPay.innerHTML = moneyFormat(monthPaySumm);
	  monthly = rounded(monthPaySumm);
	  if(monthPaySumm <= 0) {
	  	monthPay.innerHTML = "0,00";
	  }

	  //Подсчет переплаты по кредиту
	  overPay = rounded(monthly * monthSumm - credit);

	  //Подсчет переплаты по кредиту с нами
	  var monthPercentWithUs = ((percentSelect.options[percentSelect.selectedIndex].value - 0.7) / 12) / 100;
	  var annWithUs = (monthPercentWithUs * ((1 + monthPercentWithUs)**monthSumm)) / (((1 + monthPercentWithUs)**monthSumm) - 1);
	  var monthPaySummWithUs = credit * annWithUs;
	  overPayWithUs = rounded(monthPaySummWithUs * monthSumm - credit);

	  //Подсчет сэкономленной суммы
	  monthPayWithUs.innerHTML = moneyFormat(monthPaySummWithUs);
	  yourSafe.innerHTML = moneyFormat(overPay - overPayWithUs);
	  if(monthPaySummWithUs <= 0) {
	  	monthPayWithUs.innerHTML = "0,00";
	  }

	  if(overPay - overPayWithUs <= 0) {
	  	yourSafe.innerHTML = "0,00";
	  }

	}

	firstPaymentOutput.oninput = function() {
		firstHidden.value = this.value.replace(/ /g, "").replace(",00", "");
		firstPaymentSlider.value = firstHidden.value;

		 //Подсчет суммы кредита
		 creditSumm.innerHTML = moneyFormat(slider.value - firstHidden.value);
		 credit = slider.value - firstHidden.value;
		 if(credit <= 0) {
		  	creditSumm.innerHTML = "0,00";
		  }

		 //Подсчет ежемесячного платежа
		  monthSumm = years.value * 12;
		  monthPercent = (percentSelect.options[percentSelect.selectedIndex].value / 12) / 100;
		  ann = (monthPercent * ((1 + monthPercent)**monthSumm)) / (((1 + monthPercent)**monthSumm) - 1);
		  monthPaySumm = credit * ann;

		  monthPay.innerHTML = moneyFormat(monthPaySumm);
		  monthly = rounded(monthPaySumm);
		  if(monthPaySumm <= 0) {
		  	monthPay.innerHTML = "0,00";
		  }

		  //Подсчет переплаты по кредиту
		  overPay = rounded(monthly * monthSumm - credit);

		  //Подсчет переплаты по кредиту с нами
		  var monthPercentWithUs = ((percentSelect.options[percentSelect.selectedIndex].value - 0.7) / 12) / 100;
		  var annWithUs = (monthPercentWithUs * ((1 + monthPercentWithUs)**monthSumm)) / (((1 + monthPercentWithUs)**monthSumm) - 1);
		  var monthPaySummWithUs = credit * annWithUs;
		  overPayWithUs = rounded(monthPaySummWithUs * monthSumm - credit);

		  //Подсчет сэкономленной суммы
		  monthPayWithUs.innerHTML = moneyFormat(monthPaySummWithUs);
		  yourSafe.innerHTML = moneyFormat(overPay - overPayWithUs);
		  if(monthPaySummWithUs <= 0) {
		  	monthPayWithUs.innerHTML = "0,00";
		  }

		  if(overPay - overPayWithUs <= 0) {
		  	yourSafe.innerHTML = "0,00";
		  }
	}

	//range срока кредита
	var years = document.getElementById("years");
	var yearsOutput = document.getElementById("years-output");
	yearsOutput.value = years.value;

	years.oninput = function() {
	 yearsOutput.value = this.value;

	  credit = slider.value - firstPaymentSlider.value;
	 //Подсчет ежемесячного платежа
	  monthSumm = years.value * 12;
	  monthPercent = (percentSelect.options[percentSelect.selectedIndex].value / 12) / 100;
	  ann = (monthPercent * ((1 + monthPercent)**monthSumm)) / (((1 + monthPercent)**monthSumm) - 1);
	  monthPaySumm = credit * ann;

	  monthPay.innerHTML = moneyFormat(monthPaySumm);
	  monthly = rounded(monthPaySumm);
	  if(monthPaySumm <= 0) {
		  	monthPay.innerHTML = "0,00";
	  }

	  //Подсчет переплаты по кредиту
	  overPay = rounded(monthly * monthSumm - credit);

	  //Подсчет переплаты по кредиту с нами
	  var monthPercentWithUs = ((percentSelect.options[percentSelect.selectedIndex].value - 0.7) / 12) / 100;
	  var annWithUs = (monthPercentWithUs * ((1 + monthPercentWithUs)**monthSumm)) / (((1 + monthPercentWithUs)*monthSumm) - 1);
	  var monthPaySummWithUs = credit * annWithUs;
	  overPayWithUs = rounded(monthPaySummWithUs * monthSumm - credit);

	  //Подсчет сэкономленной суммы
	  monthPayWithUs.innerHTML = moneyFormat(monthPaySummWithUs);
	  yourSafe.innerHTML = moneyFormat(overPay - overPayWithUs);
	  if(monthPaySummWithUs <= 0) {
		  	monthPayWithUs.innerHTML = "0,00";
		  }

		  if(overPay - overPayWithUs <= 0) {
		  	yourSafe.innerHTML = "0,00";
		  }

	}

	yearsOutput.oninput = function() {
		years.value = this.value;
		  credit = slider.value - firstPaymentSlider.value;
		 //Подсчет ежемесячного платежа
		  monthSumm = years.value * 12;
		  monthPercent = (percentSelect.options[percentSelect.selectedIndex].value / 12) / 100;
		  ann = (monthPercent * ((1 + monthPercent)**monthSumm)) / (((1 + monthPercent)**monthSumm) - 1);
		  monthPaySumm = credit * ann;

		  monthPay.innerHTML = moneyFormat(monthPaySumm);
		  monthly = rounded(monthPaySumm);
		  if(monthPaySumm <= 0) {
			  	monthPay.innerHTML = "0,00";
		  }

		  //Подсчет переплаты по кредиту
		  overPay = rounded(monthly * monthSumm - credit);

		  //Подсчет переплаты по кредиту с нами
		  var monthPercentWithUs = ((percentSelect.options[percentSelect.selectedIndex].value - 0.7) / 12) / 100;
		  var annWithUs = (monthPercentWithUs * ((1 + monthPercentWithUs)**monthSumm)) / (((1 + monthPercentWithUs)**monthSumm) - 1);
		  var monthPaySummWithUs = credit * annWithUs;
		  overPayWithUs = rounded(monthPaySummWithUs * monthSumm - credit);

		  //Подсчет сэкономленной суммы
		  monthPayWithUs.innerHTML = moneyFormat(monthPaySummWithUs);
		  yourSafe.innerHTML = moneyFormat(overPay - overPayWithUs);
		  if(monthPaySummWithUs <= 0) {
		  	monthPayWithUs.innerHTML = "0,00";
		  }

		  if(overPay - overPayWithUs <= 0) {
		  	yourSafe.innerHTML = "0,00";
		  }
	}
	//Изменение процентной ставки
	
	var percentSelect = document.getElementById("bank-select");
	var bankPercent = document.getElementById("bank-percent-span");
	
	percentSelect.onchange = function() {
		bankPercent.value = this.options[this.selectedIndex].value;

		  credit = slider.value - firstPaymentSlider.value;
			//Подсчет ежемесячного платежа
		  monthSumm = years.value * 12;
		  monthPercent = (percentSelect.options[percentSelect.selectedIndex].value / 12) / 100;
		  ann = (monthPercent * ((1 + monthPercent)**monthSumm)) / (((1 + monthPercent)**monthSumm) - 1);
		  monthPaySumm = credit * ann;

		  monthPay.innerHTML = moneyFormat(monthPaySumm);
		  monthly = rounded(monthPaySumm);
		  if(monthPaySumm <= 0) {
			  	monthPay.innerHTML = "0,00";
		  }

		  //Подсчет переплаты по кредиту
		  overPay = rounded(monthly * monthSumm - credit);

		  //Подсчет переплаты по кредиту с нами
		  var monthPercentWithUs = ((percentSelect.options[percentSelect.selectedIndex].value - 0.7) / 12) / 100;
		  var annWithUs = (monthPercentWithUs * ((1 + monthPercentWithUs)**monthSumm)) / (((1 + monthPercentWithUs)**monthSumm) - 1);
		  var monthPaySummWithUs = credit * annWithUs;
		  overPayWithUs = rounded(monthPaySummWithUs * monthSumm - credit);

		  //Подсчет сэкономленной суммы
		  monthPayWithUs.innerHTML = moneyFormat(monthPaySummWithUs);
		  yourSafe.innerHTML = moneyFormat(overPay - overPayWithUs);
		  if(monthPaySummWithUs <= 0) {
		  	monthPayWithUs.innerHTML = "0,00";
		  }

		  if(overPay - overPayWithUs <= 0) {
		  	yourSafe.innerHTML = "0,00";
		  }
	}

	bankPercent.oninput = function() {
		  this.value = this.value.replace(",", '.');
		  credit = slider.value - firstPaymentSlider.value;
		  //Подсчет ежемесячного платежа
		  monthSumm = years.value * 12;
		  monthPercent = (this.value / 12) / 100;
		  ann = (monthPercent * ((1 + monthPercent)**monthSumm)) / (((1 + monthPercent)**monthSumm) - 1);
		  monthPaySumm = credit * ann;

		  monthPay.innerHTML = moneyFormat(monthPaySumm);
		  monthly = rounded(monthPaySumm);
		  if(monthPaySumm <= 0) {
			  	monthPay.innerHTML = "0,00";
		  }

		  //Подсчет переплаты по кредиту
		  overPay = rounded(monthly * monthSumm - credit);

		  //Подсчет переплаты по кредиту с нами
		  var monthPercentWithUs = ((this.value - 0.7) / 12) / 100;
		  var annWithUs = (monthPercentWithUs * ((1 + monthPercentWithUs)**monthSumm)) / (((1 + monthPercentWithUs)**monthSumm) - 1);
		  var monthPaySummWithUs = credit * annWithUs;
		  overPayWithUs = rounded(monthPaySummWithUs * monthSumm - credit);

		  //Подсчет сэкономленной суммы
		  monthPayWithUs.innerHTML = moneyFormat(monthPaySummWithUs);
		  yourSafe.innerHTML = moneyFormat(overPay - overPayWithUs);
		  if(monthPaySummWithUs <= 0) {
		  	monthPayWithUs.innerHTML = "0,00";
		  }

		  if(overPay - overPayWithUs <= 0) {
		  	yourSafe.innerHTML = "0,00";
		  }
	}

              
            
!
999px

Console