Percentage Growth Calculator

What Is a Percentage Growth Calculator?

A percentage growth calculator computes how much a value has increased relative to its starting point, expressed as a percentage. The formula is ((Current - Previous) / Previous) x 100. If your monthly revenue grew from $20,000 to $24,000, the growth rate is 20%. This metric is used universally in business reporting, investor presentations, and performance tracking.

How to Use the Percentage Growth Calculator

1. Enter the starting value: Type the earlier or baseline number — last month's revenue, last year's traffic, your starting follower count.
2. Enter the current value: Type the current or more recent number — this month's revenue, current traffic, your current follower count.
3. Read the growth percentage: The calculator instantly shows the growth rate as a percentage. Positive = growth, negative = decline.
4. Track period-over-period: Run the calculation for consecutive periods (month 1 vs 2, month 2 vs 3) to track growth trends over time.

Who Is This For?

• Startup founders preparing investor updates who need to present month-over-month and year-over-year growth rates for key metrics.
• Marketing managers reporting campaign performance who need to calculate traffic, lead, or conversion growth between reporting periods.
• Content creators tracking audience growth who want to see follower or subscriber increases as a clear percentage.

Key Benefits

• 100% private — your business metrics never leave your device.
• Instant calculation — results update as you type.
• Free, no account — calculate growth rates without logging into anything.
• Handles both growth and decline — negative values clearly labeled when metrics decrease.

Common Use Cases

Monthly revenue report: January revenue was $18,500, February was $22,300. Enter both to report 20.54% month-over-month growth to your team or investors.

Social media growth: You had 4,200 followers at the start of the month and 5,100 at the end. That is 21.43% growth — a strong month for organic content.

Website traffic analysis: Last month: 12,000 unique visitors. This month: 15,600. Enter both to see 30% traffic growth — evidence that your SEO efforts are working.

Frequently Asked Questions