4-3: Assume the following data for the Forster Corporation: Sales price (SP) per unit Variable cost per unit Total fixed costs Tax rare $ 25.00 $ 18.75 $ 1,250.00 40% How many units must be sold to (a) break even, (b) attain a profit before taxes of $1,000, () attain a profit after taxes of $12,000? (b) (c) 4