hello .how to calculate FIFO AND LIFO .actually i need the formula and method how to calculate this account. kindly help me to get answer .i need for my exam.

Acer Step 1: Compute the number of units sold: Sales in Units Total Sales in RM Unit Price RM722,880 RM9.60 = 75,300 units Step 2: Compute the number of units in ending inventory: its Total Units For Sales (1500+27000+48000+6200) 82,700 (- ) Number Of Unit Sold (75,300) Ending Inventory 7,400 Date Units Total Cost Unit Cost (RM) RM) Weighted Average Jan 1 1,500 6,600 Feb 10 27,000 116,100 4.30 Apr 15 48,000 259,200 5.40 Nov 1 6,200 37,200 6.00 82,700 419,100 WTDY AVG price: 37,518 RM419,100/82,700 = RM5.07 7,400 units x RM5.07( = RM37,518 FIFO Nov 1 6,200 37,200 6.00 Apr 15 1,200 6480 5.40 7,400 43,680 LIFO Jan 1 1,500 6,600 Feb 10 5,900 25,370 4.30 7,400 31,970 b)Periodic Inventory - AULONG Aulong Incorporation sells a single product. The total sales revenues for year 2020 was RM 722,880 at a unit selling price of RM9.60. Unit Price Value Date Units RM RM Beginning Inventory 01-Jan 1,500 6,600.00 Purchases : 10 - Feb 27,000 4.30 116,100.00 15-Apr 48,000 5.40 259,200.00 Total Purchases 01-Nov 6,200 6.00 37,200.00 412,500.00 The corporation uses the periodic inventory system. Required: a) Compute inventory values using weighted average (compute average cost to two decimal values); FIFO; LIFO. b) Prepare the Trading accounts using each of the three methods of inventory valuation