What are you looking to display? The % is showing. Wait. You want the list of usage stats. If you fully charged it, and it doesn't show, try first a hard reset.
Hold the top or side power/sleep button and the home button at the same time until the Apple logo appears, then release.
If that doesn't work, try Reset All Settings :
Reset All Settings
Go to Settings >General >Reset >Reset All Settings. This resets to default everything in Settings, including notifications, alerts, brightness, and clock settings like wake up alarms.