New stat formulas are being reported on TSR for defense and stamina. The following changes are reported below:
Defense:
Pre-balance:
BaseDefense = Round(ScaledDefense ∗ SpeedMod)
ScaledDefense = Round( 2∗(7/8 * Higher + 1/8 * Lower) )
Post-balance:
ScaledDefense = Round( 2∗(5/8 * Higher + 3/8 * Lower) )
Differences:
Higher defense isn't weighed as heavily anymore, but still makes up the majority of the stat. Pokemon with equal defense stats remain unchanged here; Pokemon with unequal stats took a hit.
Stamina:
Pre-balance:
Stamina = HP * 2
Post-balance:
Stamina = Floor(HP * 1.75 + 50)
Difference:
Instead of the stat simply being doubled, the base value is multiplied by a lower modifier then added to a fixed modifier. Most Pokemon benefited from this, those with sky-high HP suffer.
Threads for source:
https://www.reddit.com/r/TheSilphRoad/comments/9ofnsj/pokemon_rebalance_megathread/?utm_content=title&utm_medium=hot&utm_source=reddit&utm_name=TheSilphRoad
https://www.reddit.com/r/TheSilphRoad/comments/9ofz69/how_the_new_stats_are_calculated_from_main_series/