Summarised Balance Sheets for Walsh Tr aders at the beginning and end of the 1983 acco unting year are as follows:

Balance Sheet Fixed assets Current assets Owners' interest Current liabilities Opening Closing

£ £

12500 16 200 11 300 14 350

£23 800 £30550 16500 21960 7300 8 590

£23 800 £30550 During the year the owners withdrew for personal use, good s valued at £1700 and cash of £1100. Additional assets had been purchased by the owners on behalf of the business at a cost of £2500.

Calculate the business income earn ed by Walsh Traders du ring 1983.