Hi, i need help, i don't know why, i am trying to do a Subtotal for my excel, however, i keep getting Error when i do the sumif portion.
I uses Index, by right, should work, but i dont know y, it keep getting error.
Morever, my z only has 6 value, however, when i do the sumif, the list by right should be 6 also, but i get a lot more.
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