Yes, all 15+ calculators are 100% free. No signup, no premium tier, no hidden charges.

Is my data safe on CalcHub?

All calculations happen entirely in your browser. No data is ever sent to any server.

Does CalcHub support multiple currencies?

Yes, CalcHub auto-detects your currency from your timezone and supports 37 currencies including USD, EUR, GBP, INR, JPY, AED, SGD, CHF, KRW, and many more.

How accurate are the currency exchange rates?

The Currency Converter uses live exchange rates from the European Central Bank (ECB) via the Frankfurter API.

Percentage Increase Calculator

Calculate percentage increase between two numbers. See the exact percentage change and difference. Works for salary raises, price increases, and more.

Discount

Calculate the percentage increase from one value to another. Common uses: salary raises (how much did my pay go up?), price increases (how much more expensive is it?), growth rates (how fast is revenue growing?).

Tips for Percentage Increase

Formula: ((New Value - Old Value) / Old Value) × 100 = Percentage Increase

A 50% decrease requires a 100% increase to get back to the original — percentage changes aren't symmetrical

Compounding matters: 10% increase per year for 7 years doubles your value (Rule of 72)

Frequently Asked Questions

How do I calculate percentage increase?

Subtract the old value from the new value, divide by the old value, multiply by 100. Example: salary went from $50,000 to $55,000. Increase = ($55,000 - $50,000) / $50,000 × 100 = 10% raise.

Last updated: April 2026

Data sources: Standard mathematical formulas

For informational purposes only. Not financial, medical, or legal advice. Always consult a qualified professional for decisions affecting your finances or health.

Report an error

🧭