=SUMIF to sum from last row with data to the 2nd cell

what i'm trying to do is use this formula =SUMIF($G$2:$G$13,"1,K2:K13) based on the two coulmns.
so i want to find both columns and calculate the total at the bottom of the AMT Column and the dup coulms will have 1 and 0 that to sort out the dups but the thing is the amount of rows is always different.

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Difficult to comment without seeing the actual workbook and understanding exactly what you're getting at.

Just a guess but have you tried

Range(Cells(2, FoundD.Column + 1), Cells(LR, FoundD.Column + 1)).FormulaR1C1 = "=SUMIF($G$2:$G$" & LR &",1,K2:K13)"

Richard, isn't it like 4 am in Tokyo? I'd be dead to the world, lol