Butterfly pattern retracement for point B is around 78.6% and not 88.6%. So the pattern that is drawn is incorrect and hence please be careful with it.
subravi
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@Lion4may, Andre Cardoso an expert in harmonic patterns has suggested Point B should at least 78.6 and must close below 88.6% . If less than 78.6 it will become Gartley pattern.