PLEASE HELP ME WITH THIS PROBLEM. PLEASE SHOW ALL STEPS ON HOW TO GET TO THE ANSWER. SHOW ALL WORK, I DON'T UNDERSTAND IT. THANK YOU!!

Show all steps of how to get each number and percent. If you use excel, then please show the breakdown of the formula used. THANK YOU!!

PART C IS THE ONE IM STUCK ON

William Beville's computer training school, in Richmond, stocks workbooks with the following characteristics: Demand D Ordering costs Holding cost H 20,000 units/year $24/order $3/unit/year a) The EOQ for the workbooks is 566 (round your response to the nearest whole number). b) What are the annual holding costs for the workbooks? $ 849 (round your response to the nearest whole number). c) What are the annual ordering costs? $ 840| (round your response to the nearest whole number)