C Mike's Radiator Services specializes in the repair and replacement of radiators for passenger vehicles. Variable and fixed costs related to installation activities for the most recent month January) are listed below: 200 Item Number of radiators replaced Variable expenses Direct waterials (new radiators) Direct labour (2 hours per installation) Indirect materials Fixed expenses: Installation supervisor's wages Equipment depreciation Insurance and utilities for garage $180,890 10,000 1,800 $ 22,400 2,800 2,280 Required: 1. Calculate the per unit amounts for each of the variable expense and fixed expense items in January Required: 1. Calculate the per unit amounts for each of the variable expense and fixed expense items in January There Variable expenses Direct materials (new radiators) Direct labour (2 hours per installation) Indirect materials Fbred expenses Installation supervisor's wages Equipment depreciation Insurance and utilities for garage 2. Mike expects that 160 radiators will be installed in February and that this level of activity is within the relevant range for all variable and fixed expenses . & 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 2 decimal places.) 2 Mike expects that 160 radiators will be installed in February 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 unie" answers to 2 decimal places.) Itam February (Total Cost) February Per Unit Variable expenses Direct materials (new radiators) Direct labour (2 hours per installation) Indirect materials Fixed expenses Installation supervisor's wages Equipment depreciation Insurance and utilities for garage b-2. Explain any differences in the per unit amounts between January and February 3. Which, if any, of the costs shown above would be considered sunk costs? Why