Quote Originally Posted by Slashley View Post
Shit, that's a thing? Is there any source for that? Since it certainly doesn't tell you ingame. How does it work
Here

Scroll down to find the reward table. I think it is just a single-use ticket. You may have a chance to get a Raid event-exclusive SR, you may have a chance to get junk.

As for the main arguments, your calculation is off by 2 factors. First, the "additional jewels" sources are not negligible. Some of them can sum up to be around 2000 jewels for a total of 1 set of 12 days. Their typical progression goes like 50, 50, 50, 100, 100......,100, 200, 300, 400. The last 4 days alone is 1000 jewels. Second, your SR and SSR rate is based on your own observation. Granted Nutaku isn't the most honest of a company but they did write their Gacha odds of 3% SSR, 15% SR and 82% R in the Gacha page. Sanahtlig's calculator is based on that, along with bunch of statistical data drawn from actual pulls.

Finally, nobody touched on this yet, but to artificially get a leg up, there is always the starting Re-roll.