$**$Please explain in excel spreadsheet so I can learn. Thank you$**$

Using a lot$-$for$-$lot ordering strategy for the following item, what is the planned order release amount in week $3?($Note: Use a lead time of one week and the gross requirements and scheduled receipts depicted below, and assume you begin with $50$ units in inventory.$)$

Week $1234$

Gross requirements $01008015$

Scheduled receipts $25000$

Projected ending inventory $(50)$

Net requirements

Planned order receipts

Planned order releases

A$.0$ units

B$.5$ units

C$.15$ units

D$.80$ units