Using the inventory records completed, calculate the average inventory level of AB501, AB511, AB521. Assume that the remaining inventory after the gross requirements are satisfied, is used in another production cycle.

Product: AB501		Lead Usage Factor: 2
Lot Size Rule: L4L		Beginning Invertory: 1,800

Time(weeks): 2
Week	1	2	3	4	5	6	7	8	9	10
Gross Requirements	360	720	360	720	360	720	360	720	0	0
Scheduled Receipts	0	0	0	360	360	720	360	720	0	0
Projected Available 1,800	1,440	720	360	0	0	0	0	0	0	0
Planned Orders	0	360	360	720	360	720	0	0	0	0

Product: AB511		Lead Usage Factor: 1
Lot Size Rule: FOQ=540		Beginning Invertory: 1,170

Time(weeks): 3
Week	1	2	3	4	5	6	7	8	9	10
Gross Requirements	180	360	180	360	180	360	180	360	0	0
Scheduled Receipts	0	0	0	0	540	0	540	0	0	0
Projected Available 1,170	990	630	450	90	450	90	450	90	0	0
Planned Orders	0	0	540	0	540	0	0	0	0	0

Product: AB521		Lead Usage Factor: 2
Lot Size Rule: POQ=2		Beginning Invertory: 1,170

Time(weeks): 2
Week	1	2	3	4	5	6	7	8	9	10
Gross Requirements	360	720	360	720	360	720	360	720	0	0
Scheduled Receipts	0	0	990	0	1,080	0	1,080	0	0	0
Projected Available 1,170	810	90	720	0	720	0	720	0	0	0
Planned Orders	990	0	1,080	0	1,080	0	0	0	0	0

I need help with these because I thought I got them right, but my answers were wrong (included in parenthesis)

1. Average Inventory for AB501 =___________units **(answer is NOT 180)**

2. Average Inventory for AB511 =___________units **(answer is NOT 234)**

3. Average Inventory for AB521 =__________ units**(answer is NOT 261)**