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 Item

Number of windshields installed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $ 1000

Variable expenses:

Direct materials. . . . . . . . . . . . . . . . . . . . . . . . . $200000

Direct labour (1 hour per installation) . . . . . . . $30000

Indirect materials . . . . . . . . . . . . . . . . . . . . . . .. $10000

Fixed expenses:

Installation supervisor's wages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $4000

Installation scheduler's wages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $2000

Warehouse expenses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $5000

Required:

1. Calculate the per unit amounts for each of the variable expense and fixed expense items in July.

2. Management expects that 1,200 windshields will be installed in August and that this level of activity is within the relevant range for all variable and fixed expenses. Calculate

a. The total expense for each of the variable and fixed cost items above.

b. The per unit amounts for each of the variable and fixed cost items above. Explain any

differences in the per unit amounts between July and August.

3. Identify some factors that might cause variable costs per unit to change if the actual level

of activity in a given month falls above or below the relevant range.