You have inventory on your balance sheet and it’s measured in its lower of cost or net realisable value. It increases as you buy items and once you write something down, it decreases in value. That’s the easy part.
However, once you start expensing it onto income statement (the third way inventory decreases), that’s where the fun starts. Well, fun or tricky part to say the least. Why is it so? Let me first explain. Say you’ve bought the same item with different prices, say 10 and 12 – on your inventory listing you have 1 item with the price of 10 and the other with 12, totalling to 2 items worth for 22. What happens if you sell one of them? Continue reading