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.
Other Ways to Calculate ROI. If youâre not sure how to calculate your profit, here are two more formulas: 1  Gross Profit = Gross Revenue â Cost of Goods Sold [hereâs an article that shows you how to calculate COGS 2  ]. Gross Profit = Gross Revenue * Profit Margin (the % of your revenue that is actually profit).arketing Investment. Hereâs how this common mistake can get you into trouble. Letâs say that her companyâs average profit margin for this type of product/service is 50%. That means that only 50% of that $130,000 in revenue was gross profit; the other 50% was spent to build the products she was selling.