Store Ledger Card provided the following information for July:

Date	quantity	cost per item
1	50	2000
2	100	2500
9	50	2800
18	125	3000 (sales transaction)
20	85	3200
22	100	3400
27	150	2900 (sales transaction)

Determine the Cost of Sales, Cost of Closing Stock, Sales and Gross profit / loss under each of the following method by using perpetual inventory system, Cost are assigned on the basis of FIFO and Cost are assigned on the basis of Weighted Average.