Import keh data aligned with Octopus

Hi all.
Im keen to start looking at my ROI for my investment in the Givenergy system. Can anyone tell me which of the Givenergy reports would directly align with data from Octopus to show how much import we've had from Octopus energy Apps.
For example the Octopus app shows Kwh import as a bar chart by hour/week/month/year etc. eg June 2024 shows 18.22 kWh. Which of the corresponding GiveEnergy App Graph/Bar chart reports should I look at to see the same figure of 18.22 kwh ?
I think the correct graph chart is the 'Grid In' with the 'Total Grid Import figure'. Does that sound correct ?
If it is, then why are the Octopus Import figures close, but different for every month ?

Thanks in advance

https://community.givenergy.cloud/d/2881-report-data-download-as-excel-file

see post#2

James-brown I think the correct graph chart is the 'Grid In' with the 'Total Grid Import figure'. Does that sound correct ?
If it is, then why are the Octopus Import figures close, but different for every month ?

Octopus are using your certified meter results, whereas GE are just using a CT clamp which can never be as accurate.