You are given the following information for Firm XYZ: Fixed operating costs = $500,000 Variable operating costs per unit = $40/unit Sales price per unit = $50/unit Calculate the break-even point in units for: (treat each scenario independently) a. fixed costs decrease to $450,000 b. variable cost decreases to $37 per unit c. sales price increases to $55/unit d. changes for a, b, c, occur simultaneously