Percentage Increase Calculator
Calculate the percentage increase between any two values instantly. Enter your original and new value to see the exact percentage rise, increase amount and step-by-step working. Free, no sign-up needed.
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How to Calculate Percentage Increase
To calculate a percentage increase, subtract the original value from the new value, divide by the original value and multiply by 100. This gives the percentage by which the value has grown.
Common Percentage Increase Examples
| Situation | Typical Increase | Example |
|---|---|---|
| Annual salary raise | 3–5% | 35,000 → 36,750 = 5% raise |
| Price inflation | 2–10% | Grocery bill 200 → 220 = 10% rise |
| Investment return | 7–10% per year | 10,000 → 10,700 = 7% annual return |
| House price growth | 3–8% per year | 250,000 → 270,000 = 8% increase |
| Energy bill increase | 5–20% | Monthly bill 150 → 180 = 20% rise |
Percentage Increase vs Multiplier
A percentage increase and a multiplier are two ways of expressing the same change. A 25% increase means the new value is 125% of the original — or a multiplier of 1.25. Understanding both is useful for compound growth calculations and financial projections.
| Percentage Increase | Multiplier | Meaning |
|---|---|---|
| 10% increase | × 1.10 | New value is 110% of original |
| 25% increase | × 1.25 | New value is 125% of original |
| 50% increase | × 1.50 | New value is 150% of original |
| 100% increase | × 2.00 | New value has doubled |
| 200% increase | × 3.00 | New value has tripled |
When to Use a Percentage Increase Calculator
- Salary negotiations — calculate the percentage raise offered and compare it to inflation
- Investment tracking — measure portfolio or share price growth as a percentage return
- Price monitoring — track how much product or service prices have risen over time
- Business metrics — measure revenue growth, customer count increases or traffic gains
- Property values — calculate how much a property has increased in value since purchase
- Academic progress — compare test scores or grades across two periods
FAQs
How do you calculate percentage increase?
Subtract the original value from the new value, divide by the original value, then multiply by 100. Formula: ((New − Original) ÷ Original) × 100.
What is the percentage increase from 80 to 100?
(100 − 80) ÷ 80 × 100 = 25% increase.
What is a good salary increase percentage?
A typical annual salary increase is 3–5%. An increase that matches or exceeds inflation is generally considered good. Anything above 10% is strong, usually associated with a promotion or job change.
What is the difference between percentage increase and a multiplier?
A 25% increase means the new value is 1.25 times the original — the multiplier is 1.25. To convert a percentage increase to a multiplier, divide by 100 and add 1.
Can this calculator show a percentage decrease too?
Yes — if the new value is lower than the original, the calculator automatically shows a percentage decrease instead.
Is this calculator free?
Yes — completely free, no sign-up required.