Percentage Calculator: Master All Percentage Calculations

# Percentage Calculator: Master All Percentage Calculations

Percentages are everywhere — discounts, tips, marks, profits. Here's how to calculate them quickly.

Basic Percentage Formulas

| Calculation | Formula | Example |
|-------------|---------|---------|
| X% of Y | (X/100) × Y | 20% of 500 = 100 |
| What % is X of Y? | (X/Y) × 100 | 45 of 200 = 22.5% |
| % Increase | ((New-Old)/Old) × 100 | 100→125 = 25% increase |
| % Decrease | ((Old-New)/Old) × 100 | 200→150 = 25% decrease |

Common Percentage Problems

Shopping Discounts - 30% off ₹2000 = ₹2000 × 0.30 = ₹600 discount → Pay ₹1400 - Buy 1 Get 1 50% off = average 25% discount per item

Marks & Grades - Scored 78 out of 120 = (78/120) × 100 = 65% - CGPA 8.5 to percentage = 8.5 × 9.5 = 80.75%

GST Calculation - 18% GST on ₹500 = ₹500 × 0.18 = ₹90 → Total ₹590 - Price before GST from ₹1180 (18%) = ₹1180 / 1.18 = ₹1000

Using ToolPilot's Percentage Calculator

1. Go to Percentage Calculator
2. Select calculation type
3. Enter values
4. Get instant result

Quick Mental Math Tricks

• 10% — move decimal one place left
• 5% — half of 10%
• 1% — move decimal two places left
• 25% — divide by 4
• 33% — divide by 3

Conclusion

Bookmark ToolPilot's Percentage Calculator for quick percentage calculations anytime.

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