A company provided the following information: Required: For contribution margins, round decimals to 4 places then enter as a percentage (e. 9..6893545, rounded to .6894 , entered as 68.94 ). Use: rounded amounts in subsequent computations. For tevel of sales, round answer to the nearest dollar. A. What is the contribution margin ratio? B. What is the level of sales in dollars necessary to generate a profit of $43,800 ? \$ C. What is the contribution margin ratio if the sales pice is increased by 10% ? D. Using the information in part (C). What level of sales in dollars is necessary to generate a profit of $43,800