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): $74,900 per year Variable costs (supplies): $1.30 per maintenance hour Estimated usaae bv: Required: 1. Calculate a single charging rate for the Maintenance Department. Round your answer to the nearest cent. X per maintenance hour 2. Use this rate to assign the costs of the Maintenance Department to the user departments based on actual usage. Calculate the total amount charged for maintenance for the year. $ x 3 more Check My Work uses remaining. Next