It really is quite simple to draw in the 50% levels, but it’s important that you understand where a move begins and where it ends, because I know some traders get confused about that. Where the move started should be an exact high or low of the move, or very close to it, this is where you first place the Fib tool, then you click and drag the other end of the Fib tool to the other end of the move; where the move terminated. Where the move started you should see the “100.0” in the top right of the Fib tool and you should see the “0.0” in the bottom right of the Fib tool. This might seem confusing at first to have the 100 % level at the start of the move, but it makes perfect sense if you think about it like this: You are looking for a retracement of a move, so by the time the move is finished and the market starts retracing, it is moving back toward the origin of the move and if it were to retrace back up or down on the whole move, it would then have retraced 100% of the move. See the chart below for more help: - See more at: http://www.learntotradethemarket.com/forex-trading-strategies/trading-50-percent-retracements-price-action#sthash.NyM1tXyA.dpuf