You have been asked to establish the minimum and maximum inventory levels for the guest supplies. Assume that in high season you are going to be fully booked from Monday to Sunday and that amenities are to be replaced daily. The performance standard establishes the following set up of each room as follows:

- 2 gels

- 2 shampoos

- 2 soaps

- 2 body-milks

In each box of each type, you receive 250 units. The leading time for the delivery is 20 days, and you order monthly. At the moment, your safety level is established at one box of each item. Do you think you need to change it?