The data below relates to Covid Sdn Bhd for the month of April. Stocks on 1st April were 0 unit. April purchases and sales were as follows

Date	Purchases	Sales	Unit Cost (RM)	Inventory	Closing Inventory (Unit)
1-Apr	600		4.00	2,400	600
3-Apr	300		4.20	1,260	900
5-Apr	900		5.00	4,500	1,800
10-Apr		1,200	7.00		600
12-Apr	750		5.50	4,125	1,350
15-Apr		800	7.50		550
16-Apr	1000		6.00	6,000	1,550
18-Apr	150		6.00	900	1,700
22-Apr		800	8.50		900
24-Apr	300		6.00	1,800	1,200

Calculate the ending inventory, cost of goods sold and gross profit using the following methods:

a.FIFO b.LIFO