I am not understanding ordering quantity. I did math equation but the units are wrong. Am I to divide into 462,400 to get quantity?

5. Award: 10.00 points EOQ = /2x//5,600x8 42.400 Diagnostic Supplies has expected sales of 115,600 units per year, carrying costs of $4 per unit, and an ordering cost of $8 per order. a. What is the economic ordering quantity? Economic ordering quantity 1462.400 units 2X 115,600x B - b-1. What is the average inventory? Average inventory units b-2. What is the total carrying cost? Total carrying cost Assume an additional 60 units of inventory will be required as safety stock C-1. What will the new average inventory be? units Average inventory C-2. What will the new total carrying cost be