Well, except it's not straightforward, almost ever. New investment rounds dilute the common share equivalent ownership, but also add preferences and sometimes

Well, except it's not straightforward, almost ever. New investment rounds dilute the common share equivalent ownership, but also add preferences and sometimes other economic rights. Also, banker fees, earnouts, etc etc. I don't disagree that it would be helpful and is a step in the right direction. But it would have to come with tons of disclaimers. And, even the best cap table management software is rather poor, and its calcs get duplicated or discarded in favor of spreadsheets done by lawyers.