Field1 Good GoodVal 000000 001 12 000000 001 10 000000 001 23 000000 001 12 000000 001 10 000000 001 23 .... 000001 001 12 000001 001 12 000001 002 13 000001 002 13 000001 002 13 000001 002 13 000001 003 13 000001 003 13In The Group footer (Good) I add the Field GoodVal open Properties of that field click on Calculations and select Sum.