given the following data, calculate the cost of ending inventory using FIFO method: show work and please dont refer me to a site, I would like to know how to go about this problem, even if someone could show me how to set it up would be nice DATES 1/1 Beginning Inventory 45 units at $10 per unit 2/25 Purchases 40 units at $12 per unit 6/15 Purchases 30 units at $13 per unit 9/20 Purchases 25 units at $14 per unit 12/31 Ending Inventory 40 units