Essential Math Tool

Percentage Calculator

Solve two common percentage problems instantly.
Perfect for discounts, tips, taxes, and growth rates.

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Mode 1: X% of Y

Result

0.00

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Mode 2: X is what % of Y?

Percentage

0.00%

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📐 Percentage Formulas

  • X% of Y = (X ÷ 100) × Y
  • X is what % of Y = (X ÷ Y) × 100
  • Percentage change = ((New – Original) ÷ Original) × 100

🌟 Real‑Life Examples

✅ Discount: 20% off $80 = save $16
✅ Tip: 15% on $45 = $6.75
✅ Tax: 8% on $120 = $9.60
✅ Grade: 45 correct out of 60 = 75%