I created a list of items Data Validation in a sheet corresponding to time-frequency:
I want to multiply values in a numeric column with the corresponding weekly values to get a normalized annual cost so weekly would be 52x, monthly 12x.
It's just three columns: one numerical, one with drop down of 3 possible text values (weekly, etc) and a final numerical (annual total). If I choose weekly from the drop down, I want the value in the first column to be multiplied by 52 and the result stored in the 3rd total column.
How do I accomplish this in Google Sheets?