Calculating and using Dual Charging Rates The expected costs for the Maintenance Department of Stazler, Inc., for the coming year include:
Fixed costs (salaries, tools): $65,400 per year
Variable costs (supplies): $1.3 per maintenance hour
The Assembly and Packaging departments expect to use maintenance hours relatively evenly throughout the year. The Fabricating Department typically uses more maintenance hours in the month of November. Estimated usage in hours for the year and for the peak month is as follows:
Yearly Monthly
hours Peak Hours
Assembly Department 4,300 210
Fabricating Department 6,900 1,050
Packaging Department 10,800 840
Total maintenance hours 22,000 2,100
Actual usage for the year by:
Assembly Department 3,500
Fabricating Department 7,000
Packaging Department 10,000
Total maintenance hours 20,500
Required:
1. Calculate a variable rate for the Maintenance Department. Round your answer to the nearest cent. $ per maintenance hour Calculate the allocated fixed cost for each using department based on its budgeted peak month usage in maintenance hours.
Department Peak Number of Hours Allocated Fixed Cost
Assembly
Fabrication
Packaging
Total
2. Use the two rates 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.
Assembly
Fabricating
Packaging
Total
3. What if the Assembly Department used 3,550 maintenance hours in the year? How much would have been charged out to the three departments?
Assembly
Fabricating
Packaging
Total

1. Calculate a variable rate for the Maintenance Department. Round your answer to the nearest cent. $ per maintenance hour Calculate the allocated fixed cost for each using department based on its budgeted peak month usage in maintenance hours.

variable rate = $1.30 per maintenance hour

Department                            Peak Number              Allocated  

                                               of hours                        Fixed cost  

Assembly                          (210/2,100) x $65,400          $6,540

Fabrication                     (1,050/2,100) x $65,400        $32,700

Packaging                        (840/2,100) x $65,400         $26,160

Total                                        2,100/2,100                   $65,400

2. Use the two rates 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.

Department             Fixed costs         Variable cost                  Total              

Assembly                      $6,540     3,500 x $1.30 = $4,550      $11,090

Fabricating                  $32,700     7,000 x $1.30 = $9,100      $41,800

Packaging                   $26,160    10,000 x $1.30 = $13,000    $39,160

Total                           $65,400            $26,650                      $92,050

3. What if the Assembly Department used 3,550 maintenance hours in the year? How much would have been charged out to the three departments?

Department             Fixed costs         Variable cost                  Total              

Assembly                      $6,540     3,550 x $1.30 = $4,615        $11,155

Fabricating                  $32,700     7,000 x $1.30 = $9,100      $41,800

Packaging                   $26,160    10,000 x $1.30 = $13,000    $39,160

Total                           $65,400              $26,715                       $92,115

the correct answer is b.)