Where are you getting "drastic" battery drain?
You went through 48% of your battery in 7.5 hours. Thats not drastic. id consider that normal.
Also your numbers are way off.
You still have 52% battery remaining according to the screen shot.
So 76.4% usage OF 48% consumed is what is actually being represented there.
Remember that any time you look at your battery stats the calculations have to equal 100%.
So if you have 90% battery left. Then only 10% has been consumed. So of that 10% consumed its representing 100% of your apps that consumed 10% of your battery.
Now if you drain your battery to say 5% or less then you get a better representations of what is consuming your battery. But if its still going on 12+ hours your doing well.
From what i read on your screen shot your looking at around 14 hours of battery life.
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