How to Find the Percentage of a Number Given a number finding the value that is some percentage of that value is another common skill. To show a number as a percent in Excel you need to apply the Percentage format to the cells. P X Y.
In mathematics a percentage is a number or ratio that can be expressed as a fraction of 100.
To use the calculator enter two numbers to calculate the percentage the first is of the second by clicking Calculate Percentage. You need to find out what percent is 7 out of 300. This is simple calculator but it can really come in handy. You can use comma or dot as a decimal separator.