Sometimes a radio program is added to the carrier in such a way that the program signal causes fluctuations in the carrier's frequency. This is called frequency modulation (FM). Another way of sending a radio signal is to make the peaks of the carrier wave bigger or smaller.
Calculating the percentage profit made. It is also possible to work out the percentage profit that is made on a deal. This is done using the profit and the price that something cost originally, before it was sold on (the Cost Price). Percentage Profit = (profit/cost price) x 100%. The next example shows how this is done. Example.
Simple Interest. The net profit margin formula looks at how much of a company's revenues are kept as net income. The net profit margin is generally expressed as a percentage. Both net income and revenues can be found on a company's income statement.y applying the formula, $1 million divided by $25 million would result in a net profit margin of 4%. Although the formula is simplistic, applying the concept is important in that 4% of sales will result in after tax profit. Return to Top.