Multiple equations under SUMIF or SUMIFS
Can I create an equation that will sum and multiply multiple times in one equation  basically combining these individual equations that work alone? Tried a SUMIF and SUMIFS versions but keep getting Invalid operation when I try to combine:
=SUM(JUL@row:[JUN25]@row) * [INFLATION 2024 5%]@row
=SUM([JUL25]@row:[JUN26]@row * [INFLATION 2025 5%]@row
=SUM([JUL26]@row:[JUN27]@row * [INFLATION 2026 5%]@row
Answers

Does this work? I mocked up something I think is similar and it worked in testing:
=SUM(JUL@row:[JUN25]@row) * [INFLATION 2024 5%]@row + SUM([JUL25]@row:[JUN26]@row) * [INFLATION 2025 5%]@row + SUM([JUL26]@row:[JUN27]@row) * [INFLATION 2026 5%]@row
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