Hi Mark - I have failed the exam twice, but do recall Fixed Fee problems. I have found the only source to be Rita, Eighth Edition, P. 479-482. I remember memorizing this the night before my last exam and putting it on the brain dump asap! It's interesting that the only formula circulating in most circles is PTA; only applicable to FPIF contracts. But the Fixed Fee and Cost Plus have two required calculations: Final Fee and Final Price. "Remember you may have to calculate both the final fee and the final price for the exam", P. 480 - RMC Publications, Rita Mulcahy PMP exam prep; Eighth edition.