I shorted at $7.84 in afterhours and the days low was $7.51 it closed at $7.79. The Retracement of 50% from the $7.84 level was $7.67 so I choose to get out at $7.68 the Low the following day was $7.515 also its important to note the stock was running on the second red day. $7.84-$7.51=$0.33 divided by 2=$0.165+$7.51=$7.675 So $7.68 was my Exit or 50% Fibonacci Retracement.