Theta Corporation has three types of inventory items on hand at the end of 2018: Sales Price Historical Cost Selling Costs Units on Hand Product A $30 $22 10% 5,000 Product B $50 $40 40% 2,500 Product C $60 $31 30% 3,000 Selling costs are calculated based on a percentage of the product's sales price. Calculate the value of ending inventory at December 31, 2018 using the lower of cost and NRV rule applied on a total inventory basis (you do not need to prepare the accompanying journal entry)