Hi @Fali324 you should put this in the text property not the default sorry so it would look somthing like this:
As long as your passing a numeric value you don’t need to have the Value() if its text you will need to add that:
Value being passed:
Text(ThisItem.Quantity,"[$-en-US]$#.00","en-GB")
Text being Passed:
Text(Value(ThisItem.Quantity),"[$-en-US]$#.00","en-GB")

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Thanks
Andrew