This tutorial demonstrate on how to change File / Folder permission on cPanel

1. Login to cPanel

2. Search for File > File Manager

3. Here is step to update/change the File/Folder permission.

- Select folder under public_html and example testing Folder. 

- Refer to the right side on top showing "Permissions" and double click on the number "0755" from here you will be able to update and change the permission.

- Below is how to update/change for File and permission "0644" 

For more information:-