How to Calculate Percentage
Percentages express ratios as parts per hundred. Mastering percentage formulas helps you analyze sales discounts, loan interest rates, and financial reports.
Key Percentage Formulas
- Finding X% of Y:
Result = ((X ÷ 100)) × Y
- Percentage Change (Increase or Decrease):
Percent Change = ((New Value - Original Value ÷ Original Value)) × 100
- What Percent is X of Y?:
Percentage = ((X ÷ Y)) × 100
Real-World Shopping Example
If an item originally costs $80 and is discounted by 25%:
- Discount Amount: (25 / 100) × 80 = 20$
- Sale Price: $80 - 20 = 60
Use our free Percentage Calculator or Discount Calculator for instant answers!