A good Compound Annual Growth Rate (CAGR) percentage varies depending on the industry, investment type, and market conditions. Generally, a CAGR of 8-12% is considered good for equity investments, while higher rates may be expected in high-growth sectors. It's important to compare the CAGR against industry averages and the investor’s specific financial goals. A consistently high CAGR indicates strong performance, but always consider the risk factors associated with higher growth rates.