I am writing an RFQ for a software to support my alternativecancer.us web site and need to add a late clause. I haven’t seen any, but I was thinking of a 1% penalty for the first week late and adding 1% to the penalty every week so if not delivered until after the second week the penalty is 2%…. Has anybody seen any late penalties in a development contract? If so, how was the penalty structured? I expect the development of this software to take three weeks.