Forecast template for a 2-side marketplace

I am one of the new members and the founder of Foodom, a marketplace connecting cooks and busy people for everyday, healthy, and affordable in-home meal prep.I am working on the forecast for the business and it's more complicated than I expected... I would greatly appreciate your help if possible with a template for a 2-side managed marketplace, commission-based, forecast to create a revenue, and cost of sold goods forecast.Thanks a million!