Worked example

What is 5% of 100?

The answer is 5. Below: three ways to calculate it, a mental shortcut, and the real-world contexts where this percentage shows up.

The answer

5% of 100 is 5.

A 5% commission is common in real estate splits and small affiliate programs.

Three ways to calculate 5% of 100

Method 1: convert 5% to a decimal

Divide the percent by 100 to convert it: 5 ÷ 100 = 0.05.

Multiply: 100 × 0.05 = 5.

Method 2: use the fraction form

5% means 5/100. So 5% of 100 is (5 × 100) ÷ 100.

Compute: 5 × 100 = 500, then divide: 500 ÷ 100 = 5.

Method 3: mental shortcut

For 5%, find 10% (decimal one place left) and halve it. 10% of 100 is 10; half of that is 5.

Why this calculation matters

A commission is a percentage of a transaction paid to a salesperson or affiliate. The base is usually the gross sale amount.

A 5% commission on a $100 sale pays the seller $5.

Related percentages of 100

If you only needed to look up this one number, here are some related ones using the same base of 100:

CalculationAnswer
2% of 1002
3% of 1003
10% of 10010
15% of 10015

And the same percentage applied elsewhere

CalculationAnswer
5% of 20.1
5% of 30.15
5% of 50.25
5% of 100.5
5% of 150.75

For any percentage of any number, use our percentage of a number calculator.

Quick answers

Common questions.

Multiply 100 by 0.05 (the decimal form of 5%). Or equivalently, multiply by 5/100. The result is 5.

Divide 5 by 100 and multiply by 100. That is exactly 5% — confirming the original calculation.

Related

More worked examples.