How to apply mathematical operations to selected rows only?Hello,
I am new to JMP and struggling to calculate % change in current for 5 different devices after 72hrs of stress testing as shown in the table below. The % change in current is calculated as = (current @ a given stress duration - current @ 0hr)/current @0hr*100

This operation is quite straightforward in Excel but not sure how to apply the formula to selective rows? Any help will be greatly appreciated! I am using JMP15.0 version.
Data Table