I think it's a fair amount, for 1:you've got to do all of it fast enough to get enough costumers to gain 20,000. Second is they all need to be happy with there order, so not a penny off, which sounds easy, but then there's dumbasses like me who can talk you the quadratic formula but is slow as fuck when it comes to basic math like 20.59-40=who the fuck knows, because I don't.