Problem:
Column B contains the expenses for each of the months January to July.
We want to create a formula that will sum the expenses for all the months between January and the month specified in cell D2.
Solution:
Use the SUM, OFFSET, and MATCH functions as shown in the following formula:
=SUM(OFFSET(B2,0,0,MATCH(D2,A2:A8,0),1))
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