Part A Presidential uses a Job Order Costing System to record production costs. Overheads are applied to each job on the basis of direct labour hours. Relevant information for 2022 is as follows: Required: a. Compute the pre-determined overhead application rate. b. Compute the amount of overheads applied to production for the month of January c. Determine the over- or under-applied overhead for January. Question 2 Part B Presidential produces a phone case from recycled cardboard. Information for this product is as follows: Required: a. Compute the Contribution Margin per unit. b. Compute the Break Even Point in units. c. Compute the number of cases that must be sold to earn an operating income of $30,000 per month. d. If the selling price per lamp was reduced by $20, determine: (i) the break even point in dollars. (ii) the sales volume, in units, required to still earn an operating income of $30,000 per month.