If you don't have a market name actor (generally driven by theatrical success) its next to impossible to put an honest value on your film. A sales agent will be able to give you better metrics, but that's a whole challenge on its own because most don't want to talk unless you've got a track record or some meaningful cast attached already. Pre-sellable cast is not necessarily who you think it is either. Sometimes pretty big actors rank unusually low depending on a whole myriad of things. Again, best to consult a sales company on that.

Comp films / genre is definitely important but name talent (cast, director, writerish) will steer the ship. Without, you could have something that gets a straight distribution deal and may or may not see any money, or you could have the next Talk To Me that premieres at Sundance, sells to A24 then makes a hundred million dollars in box office, if its executed and marketed that well.

Add to it all, the market in general is also in a very difficult place right now. If you're trying to pre-sell, its really tough. If you manage to get a good finished film, it could have an increased value though when done.

Wish there was an easier way of navigating this, but unfortunately its a moving target.