What is 80% of 100?

80% of 100 = 80

Formula: 100 × 80 ÷ 100 = 80. Or work it out as 80 hundredths: 1% of 100 is 1, so 80% is 1 × 80 = 80.

100 − 80% = 20 (for example a 80% discount)
100 + 80% = 180 (for example adding 80% tax or a tip)
80 is 80% of 100

Any other numbers? Use the percentage calculator, the discount calculator or the percent change calculator.

Other percentages of 100

Percent	Of 100
35%	35
40%	40
45%	45
50%	50
60%	60
70%	70
75%	75
90%	90

80% of other numbers

Number	80% of it
50	40
60	48
70	56
75	60
80	64
90	72
120	96
150	120

All percentage answers