Talk:Wyvern/@comment-99.144.142.93-20130625234221/@comment-164.67.193.109-20140425193423

You are wrong. If you have 5 chances to drop an item that has a drop rate of 5%, the chance of dropping at least 1 item is

1 - (1 - 0.05)^5 = 0.226 = 22.6%