Excel Advance Sumif公式

Question

I have a formula to look through a list and if it contains a specific string add the cells beside it.

Cell D5 = "String1" 'for example
=SUMIF($A$4:$A$250,"*- "&D5&"*",$C$4:$C$250)

The problem I face is when I search for the " -String1 " there are times where there are multiple strings I'm searching for - example:

with the above formula it would add 300 for each string1, string2, and string4 cells and adds 400 for both string1 and string3

The formula I am looking for is to search for " -string? " and divide by cell next to it the number of "*- *" there are in the line

Answer 1

Use this array formula:

=SUM(IF(ISNUMBER(SEARCH(D5,$A$4:$A$24)),$C$4:$C$24/(LEN($A$4:$A$24)-LEN(SUBSTITUTE($A$4:$A$24,"- ","x")))))

Being an array formula it needs to be confirmed with Ctrl-Shift-Enter instead of Enter when exiting Edit mode. If done correctly then Excel will put {} around the formula.