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P18-4A Mary Willis is the advertising manager for Bargain Shoe Store. She is currently working on a major promotional campaign. Her ideas include the installation of a new light- Compute break-evew point and margin of safery rario, and prepare a CVP income statemsen before and afer chamges in busiess evirunment ing system and increased display space that will add $24,000 in fixed costs to the $270,000 he S20,04 currently spent. In addition, Mary is proposing that a 5 % price decrease ($40 to $38) will produce a 20 % increase in sales volume (20,000 to 24,000). Variable costs will remain at $24 per pair of shoes. Management is impressed with Mary's ideas but concerned about the effects that these changes will have on the break-even point and the margin of safety. (L0 3,4,51.E Instructions (a) Compute the current break-even point in units, and compare it to the break-even point in units if Mary's ideas are used (b) Compute the margin of safety ratio for curmrent operations and after Mary's changes are introduced. (Round to nearest full percent.) (c) Prepare a CVP income statement for current operations and after Mary's changes are in troduced. (Show column for total amounts only) Would you make the changes suggested? (b) Current margin of safety ratio 16 %