Honestly, I no longer trust what the battery shows. It is very inaccurate. For example, I used VPN today for around 1.5 hours, but the battery stats show that it was used 2 mins on screen and 1 min in background.
How long does it say the flashlight was in use for? Because 7% can mean a different amount for each user, depending on how long you used the phone in the last 24 hours.