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 $15.90 $16.10 $15.90 $15.90 $15.90 Net realizable value 14.50 19.20 15.20 10.40 16.40 Net realizable value less normal profit 12.80 17.60 13.75 8.80 14.80 Market

(replacement cost) 14.80 17.20 12.80 9.70 16.80