Growth Rate Calculator Formula

Understand the math behind the growth rate calculator. Each variable explained with a worked example.

Formulas Used

Growth Rate (%)

growth_rate = ((final_val - initial) / initial) * 100

Growth Factor

growth_factor = final_val / initial

Absolute Change

absolute_change = final_val - initial

Variables

VariableDescriptionDefault
initialInitial Value500
final_valFinal Value650

How It Works

How to Calculate Growth Rate

Formula

Growth Rate (%) = [(Final - Initial) / Initial] * 100

The growth rate measures the relative change between two values as a percentage. A positive rate indicates growth; negative indicates decline. The growth factor (Final/Initial) gives the multiplier: 1.30 means a 30% increase.

Worked Example

Revenue grew from $500 to $650.

initial = 500final_val = 650
  1. 01Absolute change = 650 - 500 = 150
  2. 02Growth rate = (150 / 500) * 100 = 30%
  3. 03Growth factor = 650 / 500 = 1.30

Frequently Asked Questions

What is the difference between growth rate and compound growth?

Growth rate measures the change over a single period. Compound growth (CAGR) measures the average annual growth rate over multiple periods, accounting for compounding.

Can growth rate exceed 100%?

Yes. A value that triples has a growth rate of 200%. There is no upper limit. However, the minimum is -100% (total loss, where final value is zero).

How do I annualize a growth rate?

If the growth rate is over t years, the annualized rate = ((1 + rate/100)^(1/t) - 1) * 100. This converts multi-period growth to an equivalent annual rate.

Ready to run the numbers?

Open Growth Rate Calculator