Talk:Void Relic/@comment-187.64.52.217-20160726212311/@comment-67.70.19.67-20160726220948

Actually, you can't just add probabilities like that; you could open 100 relics and get no rare items.

The probabilities on the page are correct, rounded to the nearest whole percentage point. To find the chance for at least one relic giving a rare reward, find the chance of all of the relics not giving rare rewards, then subtract that from 100%.

For example, with a four-player run with all Radiant relics:

chance for at least one rare drop = 100% - ( [ 100% - rare drop chance for 1 relic ] ^ [ number of relics used ] )

chance for at least one rare drop = 100% - ( [ 100% - 10% ] ^ 4)

chance for at least one rare drop = 100% - ( 90% ^ 4 )

chance for at least one rare drop = 100% - 65.61%

chance for at least one rare drop = 34.39%