Add formulas to complete the balances section. In cell K8, create a formula using the SUM function that calculates the total of the range D17:D20 and subtracts it from the value in cell J8.
a) =J8 - SUM(D17:D20)
b) =J8 + SUM(D17:D20)
c) =SUM(J8 - D17:D20)
d) =SUM(J8 + D17:D20)