If you look my gain was in a very short time from $22 -44. I don't short things just long/flip which is what I did here. This has not dropped 200%, it has fallen from a high of 47 to a low around 30, 17 points which is a gain of 36.1% near as I can figure, it is not quite the same as 22 to 44 which is a 22 point gain which = 100%.
Not sure where the 200% comes from, maybe you can run it through.
TIA