The following information for five products (A-E) was taken from the inventory records of the Walker Company who use the FIFO method: B E Product D # of Units 175 200 250 200 300 Unit cost $5.50 $10.00 $5.10 $5.10 $5.00 Replacement cost per unit $6.00 $9.00 $4.60 $4,50 $4.50 Net realizable value (NRV) per unit $5.20 $12.50 $7.00 $7.00 $7.00 NRV-Normal profit per unit $4.80 $10.30 $5.25 $4.00 $4.80 Required: Determine the valuation of the inventory at the lower of cost or market applied to: a. Individual items b. The inventory as a whole