I am using a SUMPRODUCT formula, or rather several of them in a workbook that is greatly reducing its efficiency. Here is the formula:

=IFERROR(SUMPRODUCT((Dump!$V$2:$V$20000=$B$23)*(Dump!$AB$2:$AB$20000=G$23)*(Dump!$F$2:$F$20000=$B29)*(Dump!$Y$2:$Y$20000="Technical"))/SUMPRODUCT((Dump!$V$2:$V$20000=$B$23)*(Dump!$Y$2:$Y$20000="Technical")),"")
Is there an alternate formula that i could use or optimizations I could make to make the workbook more efficient. I have tried using the "--" vs the "*" but it does not seem to make much difference if any.