Answer:
1. Plantwide Overhead Rate $ 220.06 per machine hour
Total Cost per Unit= Model 145 $ 555.96 per unit
Total cost per unit = Model 212 $ 616.94 per unit
Profit (loss)    Model 145  219.04 
 Loss Model 212  (26.94)
Explanation:
Real Cool
<u>Process Activity               Overhead Cost         Driver         Quantity</u>
<u><em>Components </em></u>
Changeover                      $452,000    Number of batches    750
Machining                             300,200        Machine hours      7,640
<u>Setups                                229,000        Number of setups      40</u>
                                           $981,200
<u><em>Finishing</em></u>  
Welding                         $180,100            Welding hours         3,600
Inspecting                     231,000       Number of inspections    850
<u>Rework                         81,250              Rework orders             210</u>
                                    $472,350
<u><em>Support </em></u> 
Purchasing                $136,500           Purchase orders           480
Providing space          30,300          Number of units          4,500
<u>Providing utilities        50,910            Number of units          4,500</u>
                                   $227,710
Additional production information concerning its two product lines follows.
                                         Model 145           Model 212
Units produced                   1,500                  3,000
Welding hours                    1,400                   2,200
Batches                                 375                       375
Number of inspections          610                       340
Machine hours                       2,290                    6,350
Setups                                      20                             20
Rework orders                         80                             130
Purchase orders                    320                            160
We find the plantwide overhead rate by dividing the total overhead with the total machine hours.
1. Plantwide Overhead Rate= Total Factory Overhead/ Total Machine Hours
Plantwide Overhead Rate= $981,200+ $472,350+$227,710/7640
                                        = 1681260/7640= $ 220.06 per machine hour
We multiply the machine hours of each model to get the overhead .
2.  Cost of Model 145
Materials and Labor  = $220 *1500= $330,000
Overhead = $220.06 *2290= $503,937.4
Total Cost = $83,3937.4
Total Cost per Unit= $83,3937.4/1500= $ 555.96 per unit
Cost Of Model 212
Materials and Labor  = $150 *3000= $ 450,000
Overhead = $220.06 *6350= $ 1400,810
Total Cost = $ 1850810
Total cost per unit = $ 1850810/ 3000= $ 616.94 per unit
We find the profit or loss by subtracting the mfg cost from the market value.
3.                                        Model 145          Model 212
Market Price                     $775                     $590
<u>Manufacturing Cost          ($555.96)               ($616.94)</u>
<u>Profit (loss)                          219.04                      (26.94)</u>