Math in the Trader Attitude section seems wrong.
A trader's Attitude score represents how friendly a trader NPC is with a certain character. Each point of Attitude modifiers prices by 0.25%. The maximum attitude modifier at 100 Attitude is 2.5, or a 25% price adjustment compared to 0 Attitude.
Attitude modifier = Attitude * 0.0025
I think that 2.5 in the bold section should be 0.25, which is 25%. The equation is accurate and 100 * 0.0025 = 0.25, not 2.5.