Percentage Calculations Made Easy: A Complete Guide
Master percentage calculations: finding percentages, increases, decreases, and differences between values.
Percentage calculations come up constantly — discounts, tips, tax, grade calculations, investment returns, body fat changes. Our Percentage Calculator handles the three most common types: finding X% of Y, calculating percentage change between two values, and finding the difference.
Common Uses
Shopping: 25% off a $80 item = $20 discount. Tips: 20% of a $45 meal = $9 tip. Investment returns: Your portfolio went from $10,000 to $11,500 = 15% gain. Body composition: Tracking your body fat percentage change over time.
Percentages are fundamental to health calculations too. Your BMR is multiplied by activity percentage factors to get your TDEE. Macro ratios are expressed as percentages of total calories. The waist-to-hip ratio is essentially a percentage comparison.
Try the Calculator
Put these concepts into practice with our free Percentage Calculator. No signup required.