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  1. {=SUM(IF(D1:D3="¥Ò",B1:B3,))}
  2. =SUMPRODUCT(N(D1:D3="¥Ò"),B1:B3)
  3. =SUMPRODUCT(--(D1:D3="¥Ò"),B1:B3)
  4. =SUMPRODUCT((D1:D3="¥Ò")*1,B1:B3)
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