I have a long list of numbers, for which I am trying to find a formula of what the total would be, if the growth rate never fell below zero (i.e. for every cell representing negative growth, I replaced it with a zero).

The problem is the first cell with a number in the original list doesn't always start in the same column as the others. I need a way to detect the first number over zero, in order to start the formual after that.

Here is what I have so far:

1. Sheet 1: Core Data

2. Sheet 2: =IFERROR(IF((E3-D3)/D3>0,(E3-D3)/D3,0),0) --- this changes every negative growth between the Core Data to a zero

3. Sheet 3 =ROUNDUP(IF(D3>0,BB3*(1+AC3),0),0) --- This formula works to multiply the first data cell over 0 only if it's in the very first column of the original core data.

Is there a way to detect the first cell in the core data and start the formula to show growth in the corresponding third sheet?