Cumulative Growth Rate Calculator
Quickly determine the total percentage growth between two periods.
How to Calculate Cumulative Growth Rate in Excel
Cumulative growth rate measures the total percentage increase or decrease of a value over a specific period. Unlike CAGR (Compound Annual Growth Rate), which averages growth over time, the cumulative growth rate focuses on the total change from start to finish.
The Mathematical Formula
The standard formula for cumulative growth is:
Cumulative Growth = (Ending Value / Beginning Value) – 1
To express this as a percentage, you would multiply the result by 100.
Steps to Calculate in Microsoft Excel
Excel makes it incredibly simple to track portfolio growth, revenue increases, or population changes. Follow these steps:
- Organize your data: Place your initial value in cell
A2and your final value in cellB2. - Enter the formula: In cell
C2, type=(B2/A2)-1. - Format as Percentage: Click on the result cell, go to the Home tab, and click the % symbol in the Number group.
Example Scenario
Imagine you invested $10,000 in a stock three years ago (Beginning Value). Today, your investment is worth $14,500 (Ending Value).
- Step 1: 14,500 / 10,000 = 1.45
- Step 2: 1.45 – 1 = 0.45
- Step 3: 0.45 * 100 = 45% Total Growth
Difference Between Cumulative Growth and CAGR
While cumulative growth shows the "big picture" of how much an asset grew in total, CAGR tells you the steady rate at which the investment would have grown if it had grown at the same rate every year with profits being reinvested. Cumulative growth is often used for short-term reporting or simple performance snapshots.
Advanced Excel Pro-Tip
If you have a series of values in a column (e.g., A2 through A10) and want to find the cumulative growth from the very first to the very last entry, you can use the formula:
=(LOOKUP(9.9E+307,A:A)/A2)-1
This automatically finds the last numeric value in column A and compares it to your starting point in A2.