Use the following MRP record and your calculations to answer the following question(s). The component has an order quantity of 100 (EOQ=100), and a lead time of one period. Complete the following MRP record.

Period	1	2	3	4
Gross Requirements	25	80	50	80
Scheduled Receipts	100
Projected on-hand 30
Net Requirements
Planned-order Receipts
Planned-order Releases

What is the projected available inventory in period #4?

How much is the inventory costs if ordering cost is $40 per order, and carrying cost is $3 per unit per week?