I have the first part down but i need the second part

Problem 5-4AA Periodic: Alternative cost flows LO P3 Montoure Company uses a periodic inventory system. It entered into the following calendar-year purchases and sales transactions 790 units 685.00 per unit 495 units 8 482.00 per unit 295 units@7.00 per unit Jan. 1 Begiening inventory Feb. 10 Purchase Mar. 13 Purchase Mar. 15 Sales Aug. 21 Purchase Sept. 5 Purchase Sept, 10 Salea 895 unit 4115.00 per unit 290 units$90.00 per uniE 690 usits $86.00 per unit 1.060 units8 $115.00 per unit 1,955 units Totals Required: 1. Compute cost of goods available for sale and the number of units available for sale of goods available for sale of units avalable for 2.560 units 2. Compure the number of units in ending inventory 505 unts Prey of Next>