Seems to have started wave C. High is 645. From here on should go down in a-b-c wave about 100 points lower
Has started wave 5 up & min 5=1 gives upside to 71. Likely it will be bigger retracement to the larger channel to 79.
Likely to consolidate within 71.70 & 71.60 before testing 71.23. If support does not hold it should move down to the next support @ 70.50 Just for Educational purpose..