Hi all. I have a Google Form that I use to log the start/end of a shift across different client locations and my sheet then uses a few basic formulas to work out pay rates based on location to create an invoice. I have been using this formula below in a cell to work out earnings without an issue (edited names out), but this year the hourly rate has increased in some locations and if I change this formula, it applies to last year's data and I want to retain that as it is.
=IF(A11="MC", 12.75, IF(A11="MV", 15, IF(A11="S", 12.75, IF(A11="FM", 12.75, IF(A11="W", 12.25, IF(A11="HH", 15, IF(A11="H", 14, IF(A11="L", 15, IF(A11="P", 13.5, IF(A11="QW", 13.5, IF(A11="WM", 12.75, IF(A11="V", 15,))))))))))))
If there any way that I can incorporate this year's changes without altering last year's data? I could easily just copy the form and sheet and change the values, but wanted to keep it all together. I can't share my sheet as it contains customer information and brief reports. I could copy and strip it if really needed, but will take time.