title: Is this possible? Check cell value if >0 move to next cell. Repeat until cell = 0, return last non-zero cell
body: <p>I am trying to write a function that checks a cells value, and if that cell value is >0 it moves to the cell below, and checks that cell. Once it finds a cell that is not greater than zero then it posts the last cells value that was greater than zero. 
  i.e. C39 = 400 move to cell C40. C40 = 440 move to cell C41. C41 = 0, return cell value of C40. </p>
  
  <p>Any insight would be greatly appreciated! :)</p>