I'm trying to get SUM of column "Price" base on selected item in column "Item". I've got no idea how to solve this without have to use sort & group function through SPD. This has to be a basic summary at the bottom of main list. I try to use $nodeset instead of $Rows but it become error. This is how I try to create the code.
Code:
sum($Rows/@Price[@Unit='Item1'])
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