How much will it cost to leave earth

and how much will it cost to leave earths orbit?

Virgin Galactic is charging $200,000 US for a trip into low Earth orbit aboard SpaceShipTwo.

So far, no private corporation has a space craft capable of taking humans beyond Earth orbit and returning safely. The three nations with space faring capabilities - United States, Russia & China do not have any immediate plans for a space flight to leave Earth orbit just yet due to budgetary constraints or technology constraints, thus no one can quite you a cost for leaving Earth orbit and returning safely.

the numbers range in the thousands of dollars a pound
depends on the system costs and number of users

getting back alive is extra charge

It costs more than your house. Unless your house is REALLY expensive, like a mansion.