Percentage Calculator
Calculate percentages, percentage changes, and proportions
Calculate Percentages
Results
25.0
Result
Formula: 100 × 25%
Calculation Steps:
- 1. Convert percentage to decimal: 25% = 0.25
- 2. Multiply value by decimal: 100 × 0.25 = 25
Related Calculations:
Double the result:50.0
Half the result:12.5
150% of the result:37.5
75% of the result:18.8
Understanding Percentages
Basic Concepts
- • Percentage means "per hundred"
- • 100% equals the whole amount
- • 50% is half of the amount
- • Can be greater than 100%
- • Used to compare quantities
Common Applications
- • Discounts and sales
- • Interest rates
- • Growth rates
- • Statistics
- • Performance metrics
Calculation Types
Finding Percentage Of
- • Example: 25% of 100
- • Convert % to decimal
- • Multiply by value
- • Common in discounts
Percentage Change
- • Increase or decrease
- • Compare two values
- • Used for growth rates
- • Can be negative
Finding What Percent
- • Compare two numbers
- • Divide and multiply by 100
- • Used in proportions
- • Shows relationships