Board Thread:Questions and Answers/@comment-33007902-20171028045755/@comment-31661832-20171029063507

Actually, that math is right. You are correct in saying that the percentages are independent, meaning that not getting Gogeta on a summon doesn't increase the chances he appears down the line, but if you're attempting X number of summons there is most definietly a formula to calculate the probability you pull him. It's described pretty well here.

In short, with a 0.77% chance to summon a featured SSR, it should theoretically around 13 multis for the average person to pull one (based on how many times 0.77 goes into 100), but some people (27%) will get lucky and summon one in under 40 (using the math from above).

Keep in mind that even with that 27%, you may end up pulling a different featured SSR, not Gogeta.