How To Do Gap Analysis

I want to improve my business. It's has been on a plateau and the sales are not going up anymore. A good friend of mine advised me to do gap analysis. So I searched the internet to find out how to do gap analysis and I discovered that it's really easy. All I have to do is to list down where I am and write where I want to achieve. By using concrete measures, I can plan how I will achieve my goals. Doing gap analysis helps give clarity to one's goals, you should try it.