Slicing Pie is a formula that allows founders to create a PERFECTLY FAIR equity split between founders, investors, partners and employees.

Source: Slicing Pie | Slicing Pie: Perfect Equity Splits for Bootstrapped Startups

Take a look at regarding Dynamic Split equity (, or, The Mensches Handbook to Starting a Venture). If you’d like a little more detail, you can watch the calculator video, or, even better, simply sign up for the Pie Slicer-as-a-Service.