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a. (LO 3-1) 3-30. Basic Decision Analysis Using CVP Refer to the data for Derby Phones in Exercise 3-29. Assume that the projected number of units sold for the month is 5,000. Consider requirements (b), (c), and (d) independently of each other. Required What will the operating profit be? What is the impact on operating profit if the sales price decreases by 10 percent? Increases by 20 percent? What is the impact on operating profit if variable costs per unit decrease by 10 percent? Increase by 20 percent? d. Suppose that fixed costs for the year are 20 percent lower than projected, and variable costs per unit are 10 percent higher than projected. What impact will these cost changes have on operating profit for the year? Will profit go up? Down? By how much? C. a. (LO 3-1) 3-30. Basic Decision Analysis Using CVP Refer to the data for Derby Phones in Exercise 3-29. Assume that the projected number of units sold for the month is 5,000. Consider requirements (b), (c), and (d) independently of each other. Required What will the operating profit be? What is the impact on operating profit if the sales price decreases by 10 percent? Increases by 20 percent? What is the impact on operating profit if variable costs per unit decrease by 10 percent? Increase by 20 percent? d. Suppose that fixed costs for the year are 20 percent lower than projected, and variable costs per unit are 10 percent higher than projected. What impact will these cost changes have on operating profit for the year? Will profit go up? Down? By how much? C