Ming Company uses a perpetual inventory system, I entered into the following purchases and sales trans- PROBLEM SET B actions for April. (For specific identification, units sold consist of 20 units from beginning inventory 30 units from the April 6 purchase, and 10 units from the April 25 purchase.) Problem 6-10 Date Perpetual Allume Activities Units Acquired at Cost Units Solid at Real cool flow Beginning inventory 20 unts $3.000 per unit P1 Api 6 Purchase 30 un 53,500 per 35 urts $12.000 per Apr 17 Purchase S54.500 Det Apr. 25 Purchase 10 units a $4800 per unit Apr 30 S 25 $14,000 pent Total 65 60 unts Ag C Required 1. Compute cost of goods available for sale and the number of units available for sale. 2. Compute the number of units in ending inventory 3. Compute the cost assigned to ending inventory using (a) FIFO, (b) LIPO, (c) weighted average, and (d) specific identification (Round all amounts to cents) 4. Compute gross profit earned by the company for each of the four costing methods in part 3