You do know that the drop is not linear right? You can’t extrapolate a couple hours usage to a 100% battery. Not how it works.From 7am to 3pm on the 1/28 didi you use Messenger, Google Map, Instagram, Facebook?
It looks like from 6pm to 12am on 1/27 you had about 3:25, used about 40% battery. Estimate would be about 8:30, 100% battery used. From 7am to 4pm on 1/28 you had 3:30, used about 23% battery, Estimate of about 15:00 with 100% battery used.
You battery life was much better from 7am to 4pm on 1/28 vs 6pm to 12am on 1/27. It looks like the issue could be associated with apps that you are using.