The following information pertains to BBB Manufacturing Companys Product X:

Annual Demand 33,750 units

Annual cost to hold one unit of inventory P15

Setup cost (or the cost to initiate a production run P500

Beginning inventory of Product X 0

At present, the company produces 2,250 units of Product X per production run, for a total of 15 production runs per year. The Company is considering to use the EOQ model to determine the economic lot size and the number of production runs that will minimize the total inventory carrying cost and setup cost for Product X.

1. At present, the companys total annual inventory costs is
2. If the EOQ model is used, the economic lot size is
3. If the EOQ model is used, the number of production runs should be
4. If the EOQ model is used, the total annual inventory costs, compared with that under present system, will increase (decrease) by