title: How to add a value per second to cell (google sheets)?
body: <p>for example i have this table</p>
  <div class="s-table-container">
  <table class="s-table">
  <thead>
  <tr>
  <th>a</th>
  <th>b ( value per second )</th>
  <th>c (final result)</th>
  </tr>
  </thead>
  <tbody>
  <tr>
  <td>1</td>
  <td>12.5</td>
  <td>25</td>
  </tr>
  </tbody>
  </table>
  </div>
  <p>i want to add cell b1 to c1 every second or minute ( both type will be perfect )
  so c1 should be 12.5 , 25 , 37.5 , 50 , etc ... every second or minute
  i tried to search it , i couldn't find something useful
  is there any formula?</p>