Microsoft Excel can generate trend lines based on data you provide, and in doing do, calculates the equation of the trend line. This equation can be accessed using Excel's built-in Visual Basic tools.

How to Make a Cash Flow Statement Use this sheet to keep track of the money coming in and going out of your business.

Scaling Smarter: How Startups Can Use P2P Solutions To Accelerate Growth Without Sacrificing Cash Flow By Laurent Charpentier, Forbes Councils Member.