For small projects, my company charges 200 hours for
'Analysis and Design' whose goal is to allow us to understand
the problem better and to quote a more reliable price.
Even at the end of this phase, we still prefer not to commit to fixed
price, so we ask for (actual_hours * hourly_fee).
When the client is interested only in fixed price, then it is
estimate + 30% since we are taking the risk -- this assumes we are
comfortable with our estimates. If we have not performed similar
projects before, we will probably refuse to accept the new business
when payment is based on fixed price.
in reply to [OT] How much would you quote?