Answer:
Product B
Prod A Prod B Prod C Prod D
$ 42,3 $ 50,0 $ 37,6 $ 33,5 Selling Price
-$ 20,8 -$ 30,7 -$ 21,0 -$ 19,9 Variable Manufacturing
-$ 2,7 -$ 2,1 -$ 1,0 -$ 2,4 Variable Selling
$ 18,8 $ 17,2 $ 15,6 $ 11,2 Contribution Margin
3,3 4,1 2,6 1,3 Minutes per Unit
$ 5,70 $ 4,20 $ 6,00 $ 8,62 Contr. Margin/Minutes
1.000 3.220 3.000 3.000 Quantity
3.300 13.200 7.800 3.900 Minutes Hours Shortage
$ 18.800 $ 55.376$ 46.800$ 33.600 Contribution Margin
Explanation:
To know the production over the shortage of hours it's necessary to calculate how much it's the Contribution Marging per minute of Machine.
Contr. Margin/Minute ProdA -> $5,7, ProdB -> $4,2, ProdC -> $6, ProdD -> $8,62
Once you have the number you produce as much as you can of the product with the higher Contribution Margin per hour.
As it's detailed: 3000 Units of ProdD and ProdC, 1000 Units of ProdA and 3220 Units of ProdB.
The LEAST profitable product considering the milling machine it's product B, which get a Contribution Margin per Minut of $4,20.