In some instances, accounting principles require a departure from valuing inventories at cost alone.
Determine the proper unit inventory price in the following cases, under the lower-of-cost-or-market rule.

Cases
1 2 3 4 5
Cost $14.40 $14.40 $18.20 $16.80 $14.90
Net realizable value 13.00 20.60 14.10 11.90 15.40
Net realizable value less normal profit 11.50 19.20 12.44 10.40 13.70
Market (replacement cost) 14.80 15.60 11.30 10.80 14.40