Complete the following, which involves part of the goods being sold at the regular price and the remaining amount at the reduced price. PERCENT AMT. COST MARKUP AMT. AT AT AT REDUCED REGULAR QUANTITY PER TOTAL ON REQUIRED REGULAR REDUCED REDUCED SELLING SELLING BOUGHT UNIT COST COST SALES PRICE PRICE PRICE PRICE PRICE 3. a. 80 lb. $5 20% 5% $4 b. 25 3.00 40 2.50AMOUNT AT AMOUNT AT REGULAR TOTAL REQUIRED REGULAR REDUCED SELLING COST SALES PRICE PRICE PRICE 3. a. $400 $480 76 $6.11 b. 75 105.00 23 4.35