30% of 400 is:
120
30% = 0.3
0.3 × 400
30% of 400 = 120
Convert 30% to decimal (0.3) and multiply by 400
Calculate (30 ÷ 100) × 400 = 120
If a product costs $400 and has a 30% discount, you save $120
Scoring 120 out of 400 points gives you 30%
A 30% tip on a $400 bill is $120
(Percentage ÷ 100) × Number = Result
(30 ÷ 100) × 400 = 120
Understanding how to calculate percentages is an essential life skill that you'll use constantly in everyday situations. From calculating discounts while shopping to understanding test scores, tips at restaurants, tax rates, and investment returns - percentages are everywhere.
Calculate discounts, sales tax, tips, interest rates, and compare prices to make smart financial decisions.
Understand test scores, grade calculations, attendance rates, and academic performance metrics.
Interpret survey results, population data, growth rates, and statistical information in news and research.
Calculate nutritional information, body composition, workout intensity, and health metrics.