I am not sure I get what you meant here. Isn’t it already the case? The only inputs required in the spreadsheet are:
and then (on the 2nd tab)
Granted, the investments & revenues projections are not yearly over 3 years but monthly over 10 years. However, I think than given the continuity aspect of CO, inputing revenues & investments on a yearly basis would not make much sense because depending on when in the year you invested, your ROI might differ a lot.
The only thing missing as you said is a simulation of the % owned by the founders, CO, investors over time. Formula wise, it’s a more tricky one but I’ll get it done