Percentage Increase / Decrease Calculator

See whether a value went up or down in percent terms from a starting price to an ending price. Companion to price tracking dashboards.

Calculator

Results

Percent change (negative = decrease)-23.08%

How this calculator helps

This is the same core math as percentage change, presented with plain-language labels for increases and decreases—ideal for quick reporting.

Formulachange% = ((end − start) ÷ start) × 100

How to interpret

A negative result means a decrease from start to end. A positive result means an increase.

Related

Automate monitoring with PriceWatcher— paste a product or listing URL and get email alerts when prices, stock, or listings change.