12-7. Calculate Total Revenue for the items below. Units Sold Selling Price Total Revenue a. 25 $4.64 $116.00 b. 30 $10.99 c. 12 $1,233.00 d. 75 $545.75 e. 20 $45.03 12-8. Calculate Total Variable Costs for the same items. Units Sold Total Variable Costs Per Unit Total Variable Costs a. 25 $2.00 $50.00 b. 30 $5.50 c. 12 $620.00 d. 75 $280.00 e. 20 $20.00 12-9. Calculate Total Contribution Margin for the same items. Total Revenue Total Variable Costs Total Contribution Margin a. $116.00 $50.00 $66.00 12-10. Calculate Total Profit for the same items. Total Contribution Margin Total Fixed Operating Costs Total Profit a. $66.00 $25.00 $41.00 $60.00 $425.00 $12,000.00 $200.00 12-11. Calculate Profit per Unit for the same items. Units Sold Total Profit Profit per Unit a. 25 $41.00 $1.64 b. 30 c. 12 d. 75 e. 20