please show formulas.

and Explain 1e. Many say carrying cost x 2. But others say carrying cost + carrying cost.

1a. 2300.00= Annual use in units 1b. 60.00= Cost of placing an order 1c. 1.52= Annual carrying cost per item per year 1d. = Additional carrying cost per item per year for half empty warehouse space Note: Warehouse space rented by Low is on-average only half full. 1e. = Total annual carrying cost per item per year (including physical inventory and empty warehouse 1f. = kegs per order Note: Warehouse space rented by Low is only half full on average !!! 1g