累計大等於指定數量處 (12290)

A2 {=OFFSET(C$1,,MATCH(1=1,B2<=SUMIF(OFFSET(D2,,,,COLUMN(A:J)),">0"),))

C2=B2-SUM(OFFSET(D2,,,,MATCH(A2,$1:$1,)-3))

另解 C2=B2-SUMIF(D$1:M$1,"<="&A2,D2:M2)