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.
The calculation for gross profit margin is revenue minus direct costs divided by revenue. For instance, a manufacturing company sells a product for $10,000 after generating $6,000 in direct costs, which leaves a gross profit of $4,000. Divide 4,000 by 10,000 for a gross profit margin of 40 percent. The distributor that buys the $10,000 product must factor in the acquisition cost when determining the gross profit margin. The costs may include shipping, delivery and overhead.