Discrepancy in charts calues

I have been observing too much discrepancy in chart values and the panel values. One example is bajajcon of 10th Aug … the high made was 167.7 and the once showing is 165.5…this is like more than 1% error… and there are charts with vice versa… I know the answer will be to go through one of your articles , but then why other sites show correct results and where is the consistency. There are many examples like this in last week,
If one is doing breakout trading these values matter a lot.