Percentage Increase Calculator — Year-Over-Year & Growth
Figure out the exact percentage increase between two values — useful for salary raises, investment returns, and business growth metrics.
How It Works
Percentage increase = ((new - old) ÷ old) × 100. Example: $50,000 → $55,000 salary = ($5,000 ÷ $50,000) × 100 = 10% raise.
A 5% annual increase compounded over 10 years turns $50k into ~$81k — compounding adds $31k even though individual years only show 5%.
Year-over-year (YoY) growth compares the same period in consecutive years: Q1 2023 vs Q1 2024 revenue.
Be careful with small numbers going to large ones — a $10 stock going to $15 is 50% growth, but $150 to $155 is only 3.3%.
Frequently Asked Questions
How do I calculate percentage increase?
Subtract old from new, divide by old, multiply by 100. Example: 50 → 65: (65-50)/50 × 100 = 30% increase.
What is a good annual salary raise percentage?
3–5% is standard, matching or slightly beating inflation. Job-hopping can yield 10–20% jumps. Internal promotions often average 8–12%.
What is the percentage increase from 100 to 125?
25% — you added 25 to the original 100, and 25/100 = 0.25 = 25%.