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.
Step 3. Divide the company's gross profit by the total revenues. In this example, you would divide $20 million by $100 million to get 0.2. Step 4. Convert the result from Step 3 to a profit per dollar earned ratio by plugging the result into the phrase $X of profit per dollar of revenue, where X is the result. Finishing the example, you would plug in 0.2 for X to find the gross profit margin ratio is $0.20 of profit per dollar of revenue.