You need the previous day's end-of-the-day OI to calculate the net percentage change.
This is required if you are looking to calculate the day's OI change.
if i have to calculate Change in OI for every 5 min so what should i do
If you are looking for calculating OI change every 5 minutes. You need to take the previous 5 minutes OI data, and subtract current OI data from the same.
Should take total previous OI - latest
I'm getting OI tick data so now if i have to calculate Change in OI for every 5 min so what should i do .plz tell me the step wise solution