109,375 is correct: you break even (so no income tax!!)

Use this formula:

B = Break even (?)

f = bank transfer fee (350)

u = purchase discount (.0575)

v = selling discount (.02)

w = fee on selling price (.035)

B = f / [u - v - w(1 - v)]

B = 350 / [.0575 - .02 - .035(1 - .02)] = 109375