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Excel concept

Boolean math and SUMPRODUCT

Comparisons return TRUE/FALSE; multiplying or double-negating turns them into 1/0 so they can be summed.

CommonDifficulty 1450 · Advanced
Practice · 1 questions →

The shape of it

In practice

Use SUMPRODUCT((cond1)*(cond2)*values) when SUMIFS cannot express the condition, like comparing two columns.

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