I own to know how much would it cost to own two cable outlets installed? We've got them installed contained by the walls already but need...

We've got them installed contained by the walls already but need two more rooms surrounded by the house to be wired for cable. Can anyone say newly about how much it would cost to own that done?
Answers:    Cable companies run $75 for the first one and $50 after that. That's in MO.