Percentages aren't always easy to calculate, but one of the best tools in Excel's toolbox is calculating percentages for you. Here's how to do it.

To calculate weight loss percentage, divide the amount of weight lost by your starting weight, then multiply that by 100. To break it down, the formula will be: number of pounds lost/your starting ...

Added Sales Calculating added sales depends on a number of factors. For example, if you initiate a new ad campaign in the Northeast in June, you will need to calculate a number of elements.

Using this number, you can calculate your effective tax rate, which is the tax percentage you pay. Remember, you are taxed at different rates depending on how much income you have, so the ...

Credit utilization is the percentage of your total credit you're using. CNBC Select explains how you can calculate your credit utilization rate.

To calculate your effective tax rate, you need two numbers: the total amount you paid in taxes and your taxable income for ...