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.
You divide the result by the total sales figure and multiply by 100 to get the percent gross profit margin. For example, if you had $100,000 in gross sales and $90,000 in overall costs, your gross profit margin would be 10 percent. An analysis of the gross profit margin starts with the costs of production. A large part of the cost of a typical product is the material that goes into making it. If you can reduce this cost, your costs of production go down and your gross profit margin goes up.