What is the CAGR of a business that tripled in value over 6 years?

Based on these numbers, the CAGR (compound annual growth rate) is about 20.09% per year.

6 years

What is CAGR?

CAGR (Compound Annual Growth Rate) is the constant annual rate at which a single investment would need to grow to go from its beginning value to its ending value over a given period — it assumes one entry and one exit, unlike XIRR which handles multiple cash flows.