Calculate percentage increase or decrease between two numbers, find the amount after a raise or discount, or work backward to the original value.
Calculate your total percentage pay rise when switching jobs or receiving an annual performance promotion.
Measure how consumer goods, fuel, housing, or subscription fees increase over time due to inflation.
Track quarterly (QoQ) or annual (YoY) revenue expansion and customer conversion improvements.
Evaluate capital appreciation for stocks, mutual funds, real estate assets, and crypto holdings.
A +50% increase followed by a -50% decrease leaves you at 75% of your original baseline (a 25% net loss), because the baseline changes after the hike!
Interest rates rising from 5% to 7% is a 2 percentage point increase, but represents a +40% relative percentage growth!
The percentage change formula measures relative growth (increase) or decline (decrease) between an initial value and a final value as a percentage of the original number.
Percentage change compares a final value against an initial value using the formula: Percent Change = ((Final Value - Initial Value) / Initial Value) x 100. A positive result means the value increased, while a negative result means it decreased, and the calculator always divides by the initial value, never the final one.
To find the final amount after a known percentage increase, multiply the initial value by a growth factor of 1 + (rate / 100). To reverse the calculation and find the original amount before an increase, divide the final value by that same growth factor instead of subtracting the percentage directly, which is a common mistake that produces the wrong answer.
A 15% salary hike on $50,000 gives a final salary of 50,000 x 1.15 = $57,500. If a product now costs $120 after a 20% price increase, the original price is 120 / 1.20 = $100, which is found by dividing rather than simply subtracting 20% from $120.
Use the Percentage Difference Calculator when comparing two independent numbers with no clear starting point, and the CAGR Calculator when you need an annualized growth rate across multiple years instead of a single-step percentage change.
Quick answers about how this tool works.
Percentage Increase measures directional growth from a specific starting initial value. Percentage Difference compares two independent numbers without a designated start or end point by dividing by their average.
To calculate a 15% salary hike on $50,000: Final Salary = 50,000 × (1 + 15/100) = 50,000 × 1.15 = $57,500.
If the final price after a 20% increase is $120, the original price is: Original = Final / (1 + 0.20) = 120 / 1.20 = $100.
Yes! If the final value is lower than the initial value, the calculator automatically displays the result as a percentage decrease (-%) in red.
Yes! The Percentage Increase Calculator is 100% free with live calculations and no registration required.
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