iPhone 11. How to put battery percentage as a widget

See the following instructions and add the battery widget: Use widgets on your iPhone and iPod touch - Apple Support

Hello I hope you're doing great!

Its very simple, follow this;

Home screen > Long tap on screen > tap on + on top corner > choose Battery widget (scroll down the list until you see and choose different variations)

I hope it worked well for you

Have a good day!

For more visit https://support.apple.com/en-us/HT207122