Quote from TT1:
For a simple target take 1044.31 - 839.80 = 204.51 pts.
Add 204.51 to the level of the breakout of around 930. 204.51 +930 = 1134.51 area. hope that helps ya!
And interestingly enough, a 61.8% fibonacci retracement of the recent leg down in the SPX from 1313 on August 11th to the low at 839.80 gives you a possible target of:
1132.

NOTE: For Elliott Wave followers ( Art Cashin being one of them ), a 5th and final leg down is in the offing. Thus, we may not see such a large fib retracement to the upside, but rather something around 38.2%, or even smaller.