Macbook Pro Retina mAh battery

Hi.

I have a 13' MBP Retina and Im just wondering if someone could help me saying if this is normal or not. Ive had some battery issues upgrading to El Capitan but after reinstalling it, it seems to have worked (I lost 30% of power over the night with the computer doing nothing).

Is my mAh as it should be? I would have thought it would have more mAh but thats probably just me 🙂