ABC company produces its products through a joint process. The first stage of the production is stage Xl where total joint costs during 2020 were $1,200,000. At split-off point X1, three products are produced A, B, and C. A is sold at the split-off point X1, B goes through the further process with $250,000 additional costs. C goes through another stage of joint cost (x2) with a total cost of $300,000. At X2 split-off point, two products are produced D and E. D is sold at X2 point but E goes through a further process with $80,000 total costs. productions, sales units, and sales prices are as follow: Product Units produced Units sold Sales price/unit JA 20,000 18,000 $15 IB 30,000 26,000 $22 ID 20,000 15,000 $30 E 20,000 19,000 $35 Required: 1. Calculate the cost per unit for each product using the market value approach. 2. Calculate the cost of ending inventory 3. Discuss the disadvantages of this method