Login To Your YouTube Account.
On the upper right corner of the YouTube Page you will find the Profile Icon button. Click on the Profile Icon button and select the Creator Studio option.
New Page will open and click on the on the Channel and the new manue will apear. Then sellect the Advanced option.
Under the Subscriber Count Section, select the "Display the number of people Subscribed to my Channel" Option and click on the blue "Save" button.