Formula:

UR = H - ((H-L)×percentage)

UE = H + ((H-L)×percentage)

DR = L + ((H-L)×percentage)

DE = L - ((H-L)×percentage)


Where,
H = High Range
L = Low Range
UR = Uptrend Retracement
UE = Uptrend Extention
DR = Downtrend Retracement
DE = Downtrend Extention

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