If you run a business, calculating your tax rate is part of your daily grind. How much of your receipts go to the state as sales tax? How much of your company's income goes to state and federal taxes?

Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Robert Kelly is managing director of XTS ...

Calculate average percentage difference by subtracting, then dividing price differences. Average percentage difference helps foresee market trends and irrational periods. Understanding this metric can ...

Whether you're trying to trim down or training for gains, tracking your metrics is the simplest way to fast-track your goals. While keeping score of your sets, reps, miles and macros – and whatever ...

Have you ever stared at a spreadsheet, struggling to make sense of percentage calculations that just don’t seem to add up? Whether it’s a confusing formula, a misstep with zero values, or an ...

The percentage difference is usually calculated when you want to know the difference in percentage between two numbers. Microsoft Office Excel is a great tool to help you get started. In this post, we ...

A retail business buys finished goods from suppliers and manufacturers and sells them to consumers and businesses. Retailers may also assemble or manufacture products for resale. Financial ratios ...

The cost of investing has come down dramatically over time, as commissions have fallen so far that it's easy to buy and sell shares cheaply. Yet there are other trading costs beyond brokerage ...

One way to find a percentage of an amount is to use 1%, 10% and 50% as building blocks. 1%, 10% and 50% can be used as building blocks for working out percentages in your head. 1% is 1⁄100. Work out 1 ...