The Earth's escape velocity is 11.2 km/s, the Sun's is 42 km/s. A restaurant's escape velocity is dependent on factors that are not as quantifiable. The principle however is the same. If a an object that has no external propulsion is not traveling at escape velocity, the gravitational pull of the nearest mass will act on the object and return the object to itself.
All businesses receive an initial propulsion from the start up phase. Many never add to the momentum and fall helplessly back into the abyss of non-business, while others eject a steady stream of propulsion which keeps them moving and defying the gravitational pull of the abyss. Movement is key because if your moving, you are getting closer to the stars and farther away from the gravitational pull of irrelevance.
Once you achieve the elusive escape velocity you will be among the stars