Return on investment is the ratio between:

Net profit and capital employed
Investment and profit
Sales and capital invested
Net profit and dividend

The correct answer is A. Net profit and capital employed.

Return on investment (ROI) is a performance measure used to evaluate the efficiency or profitability of an investment or compare the efficiency of a number of different investments. ROI tries to directly measure the amount of return on a particular investment, relative to the investment’s cost. To calculate ROI, the benefit (or return) of an investment is divided by the cost of the investment. The result is expressed as a percentage or a ratio.

Net profit is the total revenue of a company minus all of its expenses. Capital employed is the total amount of money that a company has invested in its assets.

ROI is a useful tool for comparing the profitability of different investments. It can also be used to track the performance of an investment over time. A high ROI indicates that an investment is profitable, while a low ROI indicates that an investment is not profitable.

Here are the brief explanations of each option:

  • Option A: Net profit and capital employed. This is the correct answer. ROI is calculated by dividing net profit by capital employed.
  • Option B: Investment and profit. This is not the correct answer. ROI is not calculated by dividing investment by profit.
  • Option C: Sales and capital invested. This is not the correct answer. ROI is not calculated by dividing sales by capital invested.
  • Option D: Net profit and dividend. This is not the correct answer. ROI is not calculated by dividing net profit by dividend.