The following information has been gathered from the accounting records of Pets Parlour:

Assets and liabilities at 31 December Year 4

Cash at bank

500

Borrowings

6,000

Trade receivables (debtors)

5,000

Property, plant and equipment

29,000

Revenue and expenses for the year ended 31 December Year 4

Fees charged for work done

20,000

Interest paid on borrowings

1,000

Administration costs incurred

1,500

Salaries paid to employees

14,000

Required

Using the accounting equation, calculate:

(a) The amount of ownership interest at 31 December Year 4.

(b) The amount of net profit for the year.

(c) The amount of the ownership interest at 1 January Year 4.