Solution set:Hello, I need explanations on the above solution set. The original problem is number 17. Complete the table but how?

17. Fill in the partially completed inventory record shown here. 1 2 200 Item: AB500 Parent: None Lot Size Rule: POQ = 3 Lead Time: 2 weeks Children: AB501, AB511, AB521 3 4. 5 Gross Requirements: 100 100 Scheduled Receipts: Projected Available: Planned Orders: 6 7 Gross Requirements: 200 100 200 100 200 Scheduled Receipts: Projected Available: Planned Orders: 8 9 10 Solution Item: AB500 Lot Size Rule: POQ = 3 Parent: None Lead Time: 2 weeks Children: AB501, AB511, AB521 1 2 3 4 5 Gross Requirements: 100 200 100 Scheduled Receipts: 400 O 0 Projected Available: O 0 300 100 O Planned Orders: 400 O 500 6 7 8 9 10 Gross Requirements: 200 100 200 100 200 Scheduled Receipts: 500 O 300 O Projected Available: 300 200 O 200 O Planned Orders: O 300 O 0 O 0