Device is currently on track for 5.63 hours of screen on time over a 19.71 hour period (71% of the charge has been used). With facebook as the
#1 app on the list, I'd say it's draining the battery and you may want to look at using the browser instead of their app (known battery hog issues) - and you do have several periods where the device is awake with the screen off, which seem to increase when you're not on WiFi. Couple that with the orange (weak) signal from the cellular radios, and that's a recipe for fast drain.
When installing Nougat, did you o a factory reset or just an OTA update? Did you clear the system cache?