JavaScript support needs to be enabled in your browser for the percentage calculator to work.
Mouse: Click on the field.
Keyboard: Use the tab key to navigate to the next field. Press Shift+Tab to go to the previous field.
Mouse: Click the Calculate button.
Keyboard: Press Enter.
The result will appear in the text box on the right. If there are any errors, the result field will be empty and the error field will be highlighted in red.
You can use either a period (.) or a comma (,) as the decimal separator.
Please refrain from using thousands separators, as the percentage calculator recognizes both periods and commas as decimal separators.