Please Answer with the method

III. The beginning inventory, purchases and sales of a particular inventory item of Carlo Company during the year were as follows: 1 14 3 January June July Sept October Dec. Inventory Purchases Sale Purchase Sale Purchases Units 150 200 100 300 200 350 Price P 12 14 18 15 16 19 1 22 14 Shares Unit Cost 2011 Total Cost Jan. 1 Feb. 1 Apr. 4 July. 9 Dec. 24 Balance Acquisition Acquisition Acquisition Acquisition 2,000 3.000 4,000 5,000 6,000 P 10 14 17 20 25 P 20,000 42,000 68,000 100,000 150,000 Deterinine the following: a. Number of units of inventory on hand at the end of the period b. value of inventory ending and cost of sales using methods: 1) Weighted average 2) First-In-First-out 3) Last-In-Last-out