Cambridge, Inc. is considering the introduction of a new calculator with the following price and cost characteristics: Sales price $18 each Variable Costs $10 each Fixed costs 20,000 per month Assume that the projected number of units sold for the year is 7,000. Consider (b) (c) and (d) independently of each other. Required: A. what will the operating profit be? B. what is the impact on operating profit if the sales price decreases by 10 percent? Increases by 20 percent? C. What is the impact on operating profit if variable cost per unit decrease by 10 percent? increase by 20? D. Suppose that fixed costs for the year are 10 percent lower than projected, and variable costs per unit are 10 percent higher than projected. Waht impact will these cost changes have on operating profit for the year? Will profit go up? Down? By how much