JSFiddle - React, Tailwind, and code Playground

HTML

<div class="bg">
  <div class="bar">
    <div class="left" style="width: 60.8%">236</div>
    <div class="right" style="width: 39.2%">152</div>
    <span class="wave"></span>
  </div>
</div>

SCSS

.bg {
  padding: 20px;
  background-color: #f1f1f1;
}
.bar {
  width: 300px;
  background: #f3f3f3;
  display: flex;
  border-radius: 6px;
  overflow: hidden;
  border-bottom: 1px solid rgba(255, 255, 255, 0.3);
  position: relative;
  > div {
    height: 40px;
    line-height: 40px;
    vertical-align: middle;
    padding: 0 10px;
    color: #fff;
    box-shadow: inset 0 -1px 1px 0px rgba(0, 0, 0, 0.1);
  }
  
  .left {
    background-image: linear-gradient(to right, #1c329a, 80%, #4057c9);
  }
  
  .right {
    text-align: right;
    background-image: linear-gradient(to left, #ffb618, 80%, #ffca2e);
    border-left: 1px solid rgba(255, 255, 255, 0.4);
  }
  
  .wave {
    position: absolute;
    top: 0;
    right: 0;
  
    &::after {
       content: '';
       top: 30px;
       left: -610px;
       position: absolute;
       border-radius: 1000px;
       transform: rotate(-4deg);
       height: 400px;
       width: 800px;
       background-color: rgba(255, 255, 255, 0.12);
    }
    
    &::before {
       content: '';
       top: 15px;
       left: -600px;
       position: absolute;
       border-radius: 400px;
       transform: rotate(5deg);
       height: 800px;
       width: 900px;
       background-color: rgba(255, 255, 255, 0.08);
    }
  }
}