Every YouTube channel on this TOP 100 list got its rank due to its percentage increase in subscriber count over the specific month. That month is defined in the calendar widget in the top part of the channel list.
The above list ranks channels not on an absolute gain in subscribers, but the relative growth rate of subscriber count over the chosen month.
Please note that this TOP list of the fastest-growing YouTube channels includes only the 100 top-performing ones that haven’t forbidden public display of their subscriber count and have had more than 50,000 subscribers at the beginning of the month that preceded the TOP’s currently displayed month.

Also, the TOP list of channels includes only those belonging to a country from the limited Easy Bloggers country list. At the moment, this list doesn’t cover the full variety of independent states and territories for various reasons. Every month, the country list may be enlarged (or reduced, but that is extremely unlikely).
Therefore, any change in a channel’s monthly rank on this TOP list may be caused not only by a change in its metrics but also due to the addition of new countries or new channels.
Furthermore, some high-performing YouTube channels may not be presented in this ranking if they belong to a country that is not yet present in our country list. And please note that a country’s inheritance of any channel depends not on its author’s residence, but the most dominant geography of the channel’s audience.