Urban Auto Glass specializes in the repair and replacement of windshields for passenger vehicles. Variable and fixed costs related to installation activities for the most recent month (July) are listed below. Item Number of windshields installed 1,700 Variable expenses: Direct materials $ 343,400 Direct labour (1 hour per installation) 49,300 Indirect materials 13,600 Fixed expenses: Installation supervisor's wages $ 6,800 Installation scheduler's wages 5,100 Warehouse expenses 8,500 Required: 1. Calculate the per unit amounts for each of the variable expense and fixed expense items in July. Item Per Unit Variable expenses: Direct materials Direct labour (1 hour per installation) Indirect materials Fixed expenses: Installation supervisor's wages Installation scheduler's wages Warehouse expenses 2. Management expects that 1,900 windshields will be installed in August and that this level of activity is within the relevant range for all variable and fixed expenses. a&b-1.Calculate the total expense and per unit amounts for each of the variable and fixed cost items above. (Round "per unit" answers to two decimal places.) Item August (Total | August Per Cost) Unit Variable expenses: Direct materials Direct labour (1 hour per installation) Indirect materials Fixed expenses: Installation supervisor's wages Installation scheduler's wages Warehouse expenses