I've actually heard that 10% of the total value of your gear (lighting, dimmers, truss, movers, control) is a good price to charge for equipment. That number would include labor of set up and tear down.
5% is probably a number for someone to pick up and return to you. A straight gear rental.
When it comes to movers, programming of the lighting is a different fee. And the fee also changes if the programmer would be on site durring the event.