Eric Lu began a small business on 1 July 2015 by depositing $250000 into a business bank account. On 30 June for the next 3 years, the assets and liabilities of the business were as follows:

30 June		Total assets		Total liabilities
2016 2017 2018		$580000 650000 740 000		$350000 370000 420000

Required:

By analysing the changes in equity each year, calculate the profit (loss) made by the business for each year ending 30 June, assuming the following events also occurred:

1. On 1 January 2016, Eric withdrew $20 000 in cash from the business for personal use.
2. On 28 August 2016, Eric invested additional cash of $30 000 into the business.
3. On 31 July 2017, Eric invested additional cash of $25 000 into the business.
4. On 28 January 2018, Eric withdrew $30 000 in cash for personal use.