How to create harmonic pattern with Zigzag?

i want to create harmonic pattern. i only intrested in 4 pattern only.

my problem is how? let say i already got my high price, then for retracement i want it in percentage as in Fibo. then the bull have to be in percentage also.. in order to complete the wave.

if the pattern complete. for the entry requiredment i can do.

just the zigzag n fibo only im having Trouble