n Office Manager uses a Periodic Review Inventory System: they check the inventory in their Office Supply Closet once every 10 days, placing an order with their supplier depending on the inventory level of the office supplies. The manager has set a restocking level of 300 post it notes for their closet. This week, the manager has counted 140 post it notes in the closet. How many post it notes will the manager order from their supplier? In other words, what is the Order Quantity?

The number of post it notes that the manager will order from their supplier will be the difference between the restocking level and the inventory at the time of review. This will be:

= Restocking level - Inventory at the time of review

= 300 - 140

= 160

Therefore, the order quantity is 160.

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