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Percentage Calculator

Calculate any percentage with ease! Choose from 6 powerful calculation modes with step-by-step explanations.

What is X% of Y?

💡 Quick Tips

  • ✅ Percentage = (Part ÷ Whole) × 100
  • ✅ To find X% of Y: (X ÷ 100) × Y
  • ✅ Increase by X%: Original × (1 + X/100)
  • ✅ Decrease by X%: Original × (1 - X/100)
  • ✅ % Change = ((New - Old) ÷ Old) × 100

🎯 Common Uses

  • 💰 Calculate discounts and sales tax
  • 📈 Analyze financial growth or losses
  • 🎓 Calculate test scores and grades
  • 📊 Compare statistics and data
  • 💵 Calculate tips and service charges

📚 Popular Examples

Shopping Discount
Item costs $80, 25% off
= $60
Test Score
45 out of 60 questions
= 75%
Sales Tax
$200 + 8% tax
= $216
Salary Increase
$50k increased by 10%
= $55k
Stock Change
From $100 to $125
= +25%
Tip Amount
18% of $85 bill
= $15.30