January 1, 2021- Purchase 1,000 units costing 1,500

January 31, 2021- Sold 800 units for 4,000 and replaced them with units costing2,800.

February 29, 2021- Sold 400 units for 2,000. Purchased 100 units costing 400.

March 31, 2021- Sold 400 units for 2,200 & purchased 200 units costing 1,000.

The following Price Indicies are gives:

2021

January 1 200

January 31. 220

February 29. 230

March 31. 240

Prepare trading account by current cost accounting method and current purchasing power method.