JSFiddle - React, Tailwind, and code Playground

HTML

<div class="b-parent">
  <div class="b-parent-item">
    <div class="b-price">
      <div class="b-price-item">50</div>
    </div>
  </div>
  <div class="b-parent-item">
    <select name="" class="select">
      <option value="-1">Параметр 1</option>
      <option selected value="50">50</option>
      <option value="100">100</option>
      <option value="110">110</option>
      <option value="130">130</option>
    </select>
  </div>
</div>
<div class="b-parent">
  <div class="b-parent-item">
    <div class="b-price">
      <div class="b-price-item">50</div>
    </div>
  </div>
  <div class="b-parent-item">
    <select name="" class="select">
      <option value="-1">Параметр 2</option>
      <option selected value="50">50</option>
      <option value="100">100</option>
      <option value="110">110</option>
      <option value="130">130</option>
    </select>
  </div>
</div>

CSS

*{
  box-sizing: border-box;
}
.b-parent {
  border: 1px solid #ccc;
  text-align: center;
  margi: 15px auto;
}
.b-parent-item {
  display: inline-block;
  vertical-align: middle;
  padding: 1em;
}

JavaScript

$(function() {
  $('.select').on('change', function() {
    var select = $(this);
    var bParent = select.parents('.b-parent');
    var bPriceItem = $('.b-price-item', bParent);
    bPriceItem.text(select.val());
  });
});