OM5- Can you please explain the following…What is the maximum number of flower

OM5- Can you please explain the following…What is the maximum number of flower pots that are held in inventory in a given ordering cycle? Based on info belowA flower shop uses 800 clay pots a month. The pots are purchased at $2 each. Annual carrying costs are estimated at $0.60 per pot per year and ordering costs are $20 per order. The manager has been currently using an order size of 1600 flower pots per order.