How to do that

fo=B4 (B5*B6) H G B10 F E D Unit Output B 1 Official College Sweatshirts 2 Flexible Budget Analysis 3 STATIC BUDGET 4 Fixed Cost $17,450 5 Variable Cost per unit $15 6 Unit Output 750 7 Sales Price $40 8 9 Sales Revenue $30,000 10 LESS: Expenses $28,700 11 Operating Income $1,300 12 13 FLEXIBLE BUDGET 14 Varying Unit Output 15 16 17 18 19 Varying Unit Output and Sales Price 20 21 $35.00 22 23 Sales Price 24 25 26 450 Unit Output 750 900 1050 1300 450 600 27 Replace the cell references in the function located in cell B10 with the appropriate named ranges