Originally Posted by
noglider
There is a general business rule that you charge three times the rate you pay your worker. Bike shops typically charge $60 per hour, but I believe they pay less than $20 per hour to mechanics.
In accounting they call this the "effective labor multiplier"... 3.0 is a little high for a job that has minimum benefits and not too much overhead, but since the mechanics probably aren't billing anywhere near the number of hours they're on the clock that means the ELM for the projects they do work on has to be higher.