General :: Get Last Subfolder On A Path?

I create a bash script and I assign a folder variable like:

#!/bin/bash
....
Myvariable_FOLDER_PATH=/PATH/TO/SPECIFIC/SUBFOLDER

is there any way to make another variable with just the specific SUBFOLDER

(?some command?)----> will make My_variable_subfolder = SUBFOLDER

so if I do

echo $Myvariable_FOLDER_PATH

i get: /PATH/TO/SPECIFIC/SUBFOLDER

and echo $My_variable_subfolder

i get: /SUBFOLDER

The tree and path names will change so I jjust want the last subfolder that I will access to access its files.