Deleting files does not affect the storage used by iCloud Drive on my iPhone.
I have permanently delete (also clear recently deleted folder) all my unused files from iCloud drive and now it consumes less than 60 MB icloud storage.
But, when I check my iPhone's storage (in Settings> iPhone storage) , iCloud drive still shows about 1.64 GB (says my recently accessed files are downloaded to this device for quick access).
Actually I delete my files 2-3 days ago and several times restart my iPhone. At last I update to latest version.
But this does not help me to save storage. I'm using 5S (12.5.4). Please help me to find a solution.
iPhone 5, iOS 10