How to Calculate CAGR if there is a Loss in the First Year?

Compound Annual Growth Rate
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🔥NEW How to calculate CAGR in the following case: Profit in year 2018: 1200 Profit in year 2017: 1400 Profit in year 2006: - 500. Thanks for your suggestions... (...) Read more? Sign up for free


Calculating CAGR if there is a Loss in the First Year

You canít calculate that. Why not?
Letís look at the formula for calculating CAGR:

CAGR = (ending amount / beginning amount)(1 / # of years) Ė 1

Mathematically, because youíre taking a root of a number, if you have a negative beginning amount and a positive ending amount, youíd be taking the root of a negative number. Unless you have an odd # of years, you canít compute this mathematically without going into imaginary numbers

The best way to deal with situations where you have a negative initial value is to just footnote it and calculate CAGR based on the first positive initial value you have. So, in your example, you had a project that lost 500 in year 2016, then gained 1400 in year 2017, and ended in year 2018 with 1200, you might write the following:

Revenues went down from 1400 to 1200 during the period 2017-2018 (CAGR of -14.29%). Note that this excludes the initial 2016 year, when the project lost 500.


More on Compound Annual Growth Rate
CAGR Calculation - Example 1
Compound Annual Growth Rate: CAGR Formula
Basis of Compound Annual Growth Rate (CAGR)
How to Calculate CAGR if there is a Loss in the First Year?
Best Practices
CAGR Calculation - Example 2
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