How come when I win I get so little but when I lose I lose so much? How does that work?
The amount you win or lose depends on the difference between your trophy score and your opponents.
If your opponent has more, you stand to win a lot or lose a few.
If your opponent has fewer, you stand to win a few or lose a lot.
If you and your opponent are the same, it will be even.
If you want to gain trophies, it helps to reroll until you find somebody you can beat who has more cups than you do.