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.
Let's look at using your gross margin to calculate the correct sales price for your work. Your gross margin is your gross profit as a percent of your sales price. If your gross profit on a $100,000 job is $25,000, your gross margin is 25%. Gross profit is what is left after you pay all direct job costs. Gross profit is what you use to pay your overhead and your profit.