A template for an annual budget for a small game publishing company:

https://docs.google.com/spreadsheets/d/1cQjmq2eHur9zJ9ULtB65lqq6DtCLZ-UIRg7W5ruYZ2U/edit#gid=1091873129

And a video overview for how to use it:

https://www.youtube.com/watch?v=kVV2KpuxHGo