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in northwind database the grouping ribbon tab is not available

i want to know how to do this 2 field (totals in the end of the subform) i don't find any code or query please help 'm not able to put the pic.

i want to make inventory fifo(first in first out) db example: February 1- beginning balance : 800 unit @ 6$ per unit 4- received 200 unit @ 7$ per unit 10- received 200 unit @ 8$ per unit 11- issued 800 unit 12- received 400 unit @ 8$ per unit 20- issued 500 unit 25- returned 100 unit to...