LO$20-4,$ LO$20-5,$ LO$20-6,$LO$20-7,$ LO$20-8$PROBLEM $20\mathrm{.}8$BCVP with Multiple ProductsRaquel Swimwear sells lines of adult and youth swimming suits. The following is per$-$unit infor$-$mation for these two product lines.Fixed costs and expenses amount to $$117,000$ per month.The company currently has total sales of $$500,000$ per month, of which $40$ percent result fromthe sale of adult swimwear and the other $60$ percent from the sale of youth swimwear.Instructionsa. Compute separately the contribution margin ratio for each line of products.b$.$ Assuming the current sales mix, computeAverage contribution margin ratio of total monthly sales.Monthly operating income.The monthly break$-$even sales volume $($stated in dollars$).$c$.$ Assume that because of consumer trends, the company's sales mix shifts to a much higher demandfor youth swimwear. Total sales are expected to remain $$500,000$ per month, but $80$ percent ofthis revenue is likely to stem from sales of the youth line. Using this new sales mix, computeAverage contribution margin ratio of total monthly sales.Monthly operating income.The monthly break$-$even sales volume $($stated in dollars$).$d$.$ Explain why the company's financial picture changes so significantly with the new sales mix.