Please show calculations on this if possible so I know how to do it. thanks

Marin Company follows the practice of pricing its inventory at the lower-of-cost-or-market, on an individual-item basis. Cost per Unit Cost to Replace Estimated Selling Price Cost of Completion and Disposal Item No. Quantit y 1320 2,000 $3.68 $3.45 $5.18 $0.40 $1.44 1333 1,700 3.11 2.65 4.03 0.58 0.58 1426 1,600 5.18 4.26 5.75 0.46 1.15 1437 1,800 4.14 3.57 3.68 0.29 1.04 1510 1,500 2.59 2.30 3.74 0.92 0.69 1522 1,300 3.45 3.11 4.37 0.46 0.58 1573 3,800 2.07 1.84 2.88 0.86 0.58 1626 1,800 5.41 5.98 6.90 0.58 1.15 From the information above, determine the amount of Marin Company inventory. $ The amount of Marin Company's inventory Normal Profit