Hi there,
I'm trying to do a sum formula for sales across all products per month (each item has its own column per month, IE H3 is one product, I3 is another, etc.)
On another sheet I'm trying to calculate total sales per month, hence I need a SUM for the above ranges. However, when I input =sum('Sheet 1'!H3:Y3) in g7 (my first cell in this column I need to generate data), and then highlight G7 and G8, and then autofill the rest down, rather than the next formula in g9 be =SUM(h8:y8) it's (h9:y9). This is incredibly frustrating and any help would be much appreciated!
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