Just a quick question. 

In the downtime gambling rules is this correct: 

0 win:  -200%

1 win:  -50%

2 wins:  150%

3 wins  200%

Example two wins at 10gp stake gives 25gp

150% of 10 is 15, not 25, and since you had to stake the 10gp to begin with, your net increase is 5gp. But you do receive 15gp after having spent 10gp.

Wording is a little confusing, but I believe it is: (with 100% of the bet being breaking even)

0 wins: -100%, 1 win: 50%, 2 wins: 150%, 3 wins: 200%

0 wins is worse than 3 wins is good, but that is gambling for ya.

That's why it's a bit confusing. The xgte says  'gain'  not net. If it said you put stakes of £ and then gain £; then yep it's a50% net.

It can be read both ways. But either way it's a bit squishy.