Snow Shovel Inventory

Let’s say you manage a hardware store and need to order snow shovels in Q3, aiming to have zero inventory left by the end of winter. Last year, during a mild winter, you sold 120 shovels at $20 each, but in harsher years, sales have reached up to 400.

How would you estimate the number of shovels to order and set the price for a mild winter, given your goal of selling out by season’s end?