Ok, example,, say have a store, and on the shelf i have hats,,selling at $15.00.. as inventory lessens , i decide to order more,, before they come in i raise the price on the hats in stock because the new order will have a price increase on it,, there fore the hats in stock cost me 7.50 and the new ones coming in cost me $10.00,, so i raise the price to 20.00 before they come in?