How can I use an "if" statement or some other way to calculate a formula when a cell value changes? Something like: =if(A1 changes value,(today), no change) This formula would reside in cell C1 and would display todays date in cell C1 if the value in A1 has changed today. If it has not changed today, it would leave the previous date (whatever it would happen to be from the last time the value in A1 has changed) in the cell. The value in A1 would be changed by typing the value directly in A1. This sounded simple.....but now I'm can't find a function to detect the change in value.....any help out there please?
Thank you.....Melinda