Today I did a similar test, this time on the mobile network, with wifi off. Over 7 hours, the battery drained from 93% to 20%, so again, about 10% per hour (10.4% in this case).
The phone was sitting in two different places indoors throughout the day, with a strong signal in one room, and a weaker signal in the other. I was checking the battery level about once per hour, slightly more frequently than during my wifi test, and also opening the settings screen and browser a couple of times to confirm the data connection. I typically keep the brightness level at about 75% to save power when the screen is on.
Network: A T-mobile MVNO set to 4G; unknown distance from towers, unknown strength/quality of network connection.
µSD inserted, no smart card.
Bluetooth off, as in yesterday’s test.