The percentage key on a calculator is a powerful tool that can be used to perform a variety of calculations, from simple percentage calculations to more complex problems involving interest and discounts. Knowing how to use the percentage key can save you time and effort, and can help you to avoid costly mistakes.
The percentage key is typically denoted by the “%” symbol. To use the percentage key, simply enter the number you want to calculate the percentage of, followed by the percentage key, and then the percentage you want to calculate. For example, to calculate 10% of 100, you would enter 100 % 10 =. The answer, 10, will be displayed on the calculator’s screen.