The medical practice of Dr Lee has made a profit of £1,700 over the month but the cash flow caused by operations is an outflow of £900. How can a business make a profit and yet see an outflow of cash caused by operations? This question is asked all too often in reality. You can provide the answer by comparing the cash flow due to operating activities and the calculation of net profit. If you are not sure how to make the comparison, look back to Chapter 3 where the financial statements of P. Mason’s legal practice were analysed (Table 3.7).