Different values on the charts

Hi all

I'm having what appears to be some different readings from the feeds.

I have a log feed and when i try the simoplezoom graph something is not right. When seing the graph day by day it shows for the 27 of September for instance 152 KWh but when i drill inside it shows average of 460 W and 11,19 Kw. I attach some images.

I've downloaded the csv file and tried some calculations and concluded that the average is 462 and if i multiply that by 24 it gives me 11 Kw. 

So it seems the csv and one part of the graph tell me the same thing. But the other doesn't. What am i doing wrong?

Thanks