How to Calculate Percentage Increase Step-by-Step
A clear, step-by-step guide to calculating percentage increase manually or with a calculator. Master the formula in minutes.
Don't just calculate the percentage. Understand what your pay raise actually means for your purchasing power in 2025.
Calculate Your True Pay Raise In Seconds
To calculate your salary increase percentage, subtract your old salary from your new salary, divide by your old salary, and multiply by 100. This calculator does this instantly and provides a crucial 'Real Value' analysis—comparing your nominal raise against the 2025 projected inflation rate to show if you're actually gaining purchasing power.
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The Formula
((New Salary - Old Salary) / Old Salary) * 100| Scenario | Raise % | Verdict |
|---|---|---|
| Cost of Living (COLA) | 2-4% | Keeps up with bills. Neutral wealth growth. |
| Strong Merit Increase | 5-9% | Beats inflation. Real purchasing power gains. |
| Promotion / Job Hop | 15-25%+ | Lifestyle changing income shift. |
| Stagnation | 0-2% | Likely effectively a pay cut due to inflation. |
Projection based on estimated 2025 economic trends.
Earning more dollars doesn't always mean you are richer. To understand your true salary increase, you must compare your raise percentage against the Consumer Price Index (CPI) or inflation rate.
Real Raise % ≈ Nominal Raise % - Inflation %
**Example:**
If you get a **5% raise** but inflation involves a **3% price increase** across the economy, your "Real Raise" is only roughly **2%**.
This calculator automatically highlights this gap. If your raise section shows a neutral or negative "Real Growth" figure, it might be time to negotiate for a higher adjustment or seek a new role.
In the US, salary increases are typically discussed in Gross Annual Terms.
In the EU, many negotiate based on Monthly Net or Annual Gross depending on the country.
50k to 55k Raise
Result: 10.0% Increase (+$5,000)
$20/hr to $25/hr
Result: 25.0% Increase (+$5/hr)
COLA Adjustment (3%)
Result: Matches Inflation (Neutral Purchasing Power)
Promotion (20%)
Result: Significant Real Income Growth
Use the formula: `(New Salary - Old Salary) / Old Salary * 100`. For example, if you go from $50,000 to $55,000: `(55,000 - 50,000) / 50,000 = 0.10`, which is a 10% raise.
In 2025, a 'good' raise typically exceeds the inflation rate (projected around 2.5-3.5%). A 4-5% raise maintains purchasing power, while merit increases often range from 5-10%, and promotions can command 15-20%+.
Yes. The math for percentage increase is identical whether you earn a salary or an hourly wage. Simply input your current hourly rate (e.g., $25) and your new rate (e.g., $28) to get the correct percentage (12%).
If your salary increase percentage is *lower* than the inflation rate, your 'real' income actually decreases because goods cost more. This calculator estimates your 'Real Growth' by effectively subtracting an estimated inflation factor from your nominal raise.
Ensure both numbers use the same time period. If you compare a *monthly* current pay to a *yearly* new pay, the result will be wrong. Convert everything to the same unit (all annual or all hourly) before calculating.
A clear, step-by-step guide to calculating percentage increase manually or with a calculator. Master the formula in minutes.
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