butterfly harmonic pattern: AB=0.78 XA BC=0.88 AB=$1.13 0.23 XA=$2.22 0.38 BC=$3.98 0.38 XA=$4.47 0.61 BC=$8.76 0.61 XA=$13.87 0.78 BC=$15.35 0.88 BC=$21.44 0.78 XA=$31 0.88 XA=$50.2 1.41 BC=$123 1.31 XA=$161.8 1.6 BC=$246.8 1.27 XA=$320 1.41 XA=$620 2 BC=$883 1.6 BC=$1682 2.24 XA=$1968