How does Aggressive Negotiations work

kerbal-space-program

I have little need for reputation so I chose to get a high level of aggressive negotiations. Now it says I pay 90 reputation for each discount.

I assume that unlocking science parts is a single transaction.

But is making a ship with 4 of the same part 4 rounds of aggressive negotiation so 360 reputation.

Or is it calculated per part with an unlimited number, so 90 rep.

Or is it only charged on unlocking parts?

Best Answer

According to this post, Aggressive Negotiations works on a per ship/launch AND on each new technology(parts not techtree node) that is unlocked.