Revenue growth rate is the percentage increase in revenue from the previous year. For example, if your company's revenue was $100,000 in the previous year, and $120,000 in the current year, your revenue growth rate would be 20% (120,000/100,000).
This metric is a great way to see how your company is performing over time. If your revenue growth rate is consistently increasing, it's a good sign that your company is doing well. If your revenue growth rate is decreasing, it's a sign that your company is struggling.
If you're a startup, you should be aiming for a revenue growth rate of at least 20% per year. If you're a more established company, you should be aiming for a revenue growth rate of at least 10% per year.