Bruce Corporation makes four products in a single facilty. These products have the following unit product costs: Additional data concerning these products are listed below. The grindirg machines are potensally the constraint in the production facilty A total of 68,100 minutes are avalabie per month on these machines. Diect labor is a varable cost in this compatyy Up to how much should the compary be willing to pay for one additional minute of grindang machine time if the company has made the best use of the existing grinding machine capacity? (Round your intermediate calculations to 2 decimal places.) Muitiple Onoice 53.80 512.42 51036 1760