I'm assuming that a lot of people ordered 2, but if they didn't, add 1 to up to 50 people's order
I didn't include the legend fee before (but after calculating it with it, it makes no difference), but lets add that in to be precise. This is assuming both hit 100. In the case of Tacgnol, it's actually cheaper for us to double it to 100 if it hits 50.
100 * 2.08 + 45 = $253.00
150 * 1.43 + 45 = $259.50
259.5 - 253 = $6.50
6.50 / 50 = $0.13 per extra key.