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.
In order to calculate gross profit, you must have two important figures. First, you must have the dollar amount of net sales for a given time period. Second, you must have the dollar amount for cost of goods sold (COGS). The formula for calculating gross profit is: Gross Profit = Net Sales - Cost of Goods Sold.