<div class="card-product__order-price">
          <span id="base-price">1000</span>
          руб
                  </div>
<div class="card-product__bubbles">

                    <div class="card-product__col">
            <div class="card-product__bubbles-title">
                            Пункт 1                     </div>
            <div class="card-product__row">
                            <label class="card-product__bubble">
                <input name="card-bubble-1" type="radio" checked="" value="1">
                <span>вариант 1</span>
              </label>
                            <label class="card-product__bubble">
                <input name="card-bubble-1" type="radio" value="1.2">
                <span>вариант 1-2</span>
              </label>
                          </div>
            <div class="card-product__row">
                            <label class="card-product__bubble">
                <input name="card-bubble-1-1" type="radio" checked="" value="1">
                <span>вариант 2-1</span>
              </label>
                            <label class="card-product__bubble">
                <input name="card-bubble-1-1" type="radio" value="1.1">
                <span>вариант 2-2</span>
              </label>
                            <label class="card-product__bubble">
                <input name="card-bubble-1-1" type="radio" value="1.15">
                <span>вариант 2-3</span>
              </label>
                          </div>
          </div>
          
                    <div class="card-product__col">
            <div class="card-product__bubbles-title">
                            Пункт 2                         </div>
            <div class="card-product__row">
                            <label class="card-product__bubble">
                <input name="card-bubble-2" type="radio" checked="" value="1">
                <span>вариант 3-1</span>
              </label>
                            <label class="card-product__bubble">
                <input name="card-bubble-2" type="radio" value="1.1">
                <span>вариант 3-2</span>
              </label>
                            <label class="card-product__bubble">
                <input name="card-bubble-2" type="radio" value="1.15">
                <span>вариант 3-3</span>
              </label>
                            <label class="card-product__bubble">
                <input name="card-bubble-2" type="radio" value="1">
                <span>вариант 3-4</span>
              </label>
                          </div>
          </div>
          
                    <div class="card-product__col">
            <div class="card-product__bubbles-title">
                            Пункт 3                         </div>
            <div class="card-product__row">
                            <label class="card-product__bubble">
                <input name="card-bubble-3" type="radio" checked="" value="1">
                <span>вариант 4-1</span>
              </label>
                            <label class="card-product__bubble">
                <input name="card-bubble-3" type="radio" value="1.2">
                <span>вариант 4-2</span>
              </label>
                            <label class="card-product__bubble">
                <input name="card-bubble-3" type="radio" value="1.25">
                <span>вариант 4-3</span>
              </label>
                          </div>
          </div>
          
          
        </div>

/**
 * для вопроса https://qna.habr.com/q/1252278
 * Как сделать, чтобы в калькуляторе по input значения не росли бесконечно?
 */
const inputs = document.querySelectorAll('input');
const basePrice = document.querySelector('#base-price');
const initialPrice = +basePrice.innerText;

// радиокнопки
const radioBubbles1 = document.querySelectorAll('input[name="card-bubble-1"');
const radioBubbles1_1 = document.querySelectorAll('input[name="card-bubble-1-1"');
const radioBubbles2 = document.querySelectorAll('input[name="card-bubble-2"');
const radioBubbles3 = document.querySelectorAll('input[name="card-bubble-3"');


// включаем отслеживание (прослушку)
for (const input of inputs) {
  input.addEventListener('input', function () {
    calculate();
  })
}


// функция калькулирования
function calculate() {
  let totalPrice = initialPrice;
  for (const radio of radioBubbles1) {
    if (radio.checked) {
      totalPrice = totalPrice * parseFloat(radio.value);
      console.log(totalPrice);
    }
  }
  for (const radio of radioBubbles1_1) {
    if (radio.checked) {
      totalPrice = totalPrice * parseFloat(radio.value);
      console.log(totalPrice);
    }
  }
  for (const radio of radioBubbles2) {
    if (radio.checked) {
      totalPrice = totalPrice * parseFloat(radio.value);
      console.log(totalPrice);
    }
  }
  for (const radio of radioBubbles3) {
    if (radio.checked) {
      totalPrice = totalPrice * parseFloat(radio.value);
      console.log(totalPrice);
    }
  }

  basePrice.innerText = totalPrice.toFixed(2);
}