If you want to be completely sure, a really small amount, lets say your baseline is 20% to detect a 2% difference you just need 2 x 6,347 views for each test C

If you want to be completely sure, a really small amount, lets say your baseline is 20% to detect a 2% difference you just need 2 x 6,347 views for each test Check this tools[0] and this article [1] [0] https://www.evanmiller.org/ab-testing/sample-size.html#!20;80;5;2;0 https://www.evanmiller.org/ab-testing/sample-size.html#!20;8... [1] https://www.evanmiller.org/how-not-to-run-an-ab-test.html https://www.evanmiller.org/how-not-to-run-an-ab-test.html