5. Garden Variety Flower Shop uses 750 clay pots a month. The pots are purchased at $2 each. Annual carrying costs per pot are estimated to be 30 percent of cost, and ordering costs are $20 per order. The manager has been using an order size of 1,500 flower pots. a. What additional annual cost is the shop incurring by staying with this order size

Additional cost = $570

Explanation:

Monthly demand = 750

Annual demand (D) = Monthly Demand x Number of months in a year

Annual demand (D) = 750 x 12 = 9,000

Cost (C) = $2.00 each

Annual carrying costs (Cc) = 30 percent of cost

Annual carrying costs (Cc) = 30% of $2.00 = $0.60

Ordering costs (Co) = $20

Current order quantity (Q1) = 1,500

Solution:

(a) Current cost is calculated as,

Current cost = Annual carrying costs + Annual ordering costs

Current cost = [ (Quantity / 2) x Carrying cost] + [ (Annual demand / Current Quantity) x Ordering cost]

Current cost = [ (1500 / 2) x $0.60] + [ (9000 / 1500) x $20]

Current cost = $450 + $120

Current cost = $570