SUMIF adds up numbers that meet one condition — like summing only 'Paid' invoices. Here's how it works, with examples, and a free tool to generate it for your exact columns.
=SUMIF(range, criterion, sum_range)range = cells to check · criterion = the condition · sum_range = cells to add.
=SUMIF(A:A, "Paid", B:B)
=SUMIFS(B:B, A:A, "Paid", C:C, "West")
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