Talk:DecAnniversary Event/@comment-2601:5C7:C100:B21A:BC57:F037:1B4B:F7C4-20180512112302/@comment-183.90.36.160-20180512134220

890% means each fused +100 stats becomes +890 stats.

And the bonus if all milestones met is probably 190% instead of 90% mentioned, my guess.