Based on trend line analysis, I think there are three key levels of support.
825 --- High probability
675 --- Moderate probability
435 --- Low probability
[IMAGE: https://steemitimages.com/DQmWFQi5Apo3jCKHfmh4kq8iN1fhzx5VTeZyQofTgkk2Sf9/original_114145450.png]