Please do im excel if possible.

A distribution center (D C) in Wisconsin stocks Sony plasma T V sets. The center receives its inventory from a mega warehouse in Kansas with a lead time ( L ) of 5 days. The D C uses a reorder point (R) of 320 sets and a fixed order quantity (Q) of 280 sets. Current on-hand inventory at the end of Day 1 is 440 sets. There are no scheduled receipts (S R) and no backorders (B O). All demands and receipts occur at the end of the day. - Determine when to order using a Q system