Board Thread:General Discussion/@comment-26941578-20150830040837/@comment-24956068-20150830200949

And, now - to confirm Supreme Treasure Chest purchase, does my calculation below is correct?

S-Class non-Power+ is 26.67% S-Class Power+ is 13.33% (which is 33% x 40%)    Total of S-Class chance is 40%

A-Class non-Power+ is 39%    A-Class Power+ is 21% (which is 35% x 60%)    Total of A-Class chance is 60%