A Da Calculating and Using a Single Charging Rate The expected costs for the Maintenance Department of Stazler, Inc., for the coming year include: Fixed costs (salaries, tools): $71,825 per year Variable costs (supplies): $1.35 per maintenance hour Estimated usage by: Assembly Department 4,900 Fabricating Department 6,100 Packaging Department 11,100 Total maintenance hours. 22,100 Actual usage by: C > Assembly Department 3,300 Fabricating Department 6,200 Packaging Department 10,300 Total maintenance hours 19,800 Required: 1. Calculate a single charging rate for the Maintenance Department. Round your answer to the nearest cent. per maintenance hour Check My Work Next