Excel Memory Company can sell all units of computer memory X and Y that it can produce, but it has limited production capacity. It can produce two units of X per hour or three units of Y per hour, and it has 4,200 production hours available. Contribution margin is $7 for product X and $6 for product Y. 1. Calculate contribution margin per production hour. 2. What is the most profitable sales mix for this Company? Allocate 24% its production capacity to Product Y Allocate all of its production capacity to Product X Allocate 40% its production capacity to Product X Allocate all of its production capacity to Product Y