Newbie here. I have Excel sheet with Columns A , B and C. Column A is the number of useful years left on a piece of equipment. Column B is the starting year. Column C will be the final year of equipment life or Column A + Column B so that formula is =SUM(A+B). Easy to do, except I have 271 rows of differing numbers for Column A. and B. Is there a formula that would basically say =SUM(A+B) where A changes to whatever row it's inserted on so if it is applied to Row 200 it will select Row 200's A value? Or am I going to have to do all 271 rows separately?