So if you didn't know, I just inadvertently found out that 14 persuasion gives -88% discount at all merchants.
20 CHA, speech skill illithid power, +1 persuasion / deception ring, and 14 in persuasion and deception, 13 intimidation.
The illithid power also doesn't need a skill proficiency point spent in the skills, I didn't put proficiency in deception and it still gets proficiency and expertise from the tadpole power.
