title: Drive EV tool with Drupal-7 using webforms and charts
body: <p>I have to create a calculator like <a href="https://sonomacleanpower.org/drive-ev-choose-ev" rel="nofollow noreferrer">https://sonomacleanpower.org/drive-ev-choose-ev</a>. </p>
  
  <p>I have to develop a calculator using Drupal-7 with Webfroms calculator and Drupal modules such as charts. </p>
  
  <p>Is it possible to create a calculator like this using Drupal-7 modules?</p>