Practical guide
How to calculate a percentage quickly
Quick answer: To calculate x% of a number, multiply the number by x and divide by 100. Example: 20% of 80 = 16.
What to do
To calculate x% of a number, multiply the number by x and divide by 100. Example: 20% of 80 = 16.
Check the details
Use official settings, documentation and first-party support pages when the steps depend on a specific service or device.
Keep security in mind
Do not share passwords, one-time codes or sensitive financial details with someone who contacted you unexpectedly.
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