How mana surge % is calculate ?

mastery point / mana surge %

282 => 59 %

291 =>312 = 60 %

If I try to understand :

59/282 = 0.209

So … with rounding 0.21 * 282 = 59.22

with 291 (60% in real ) => 291*0.21 = 61.11

So I don’t understand

How mana surge % is calculate ?

mastery point / mana surge %

282 => 59 %

291 =>312 = 60 %

If I try to understand :

59/282 = 0.209

So … with rounding 0.21 * 282 = 59.22

with 291 (60% in real ) => 291*0.21 = 61.11

So I don’t understand

The formula (for PC/Mobile) is:

CHANCE = (0.73 * MASTERY) / (MASTERY + 62)

Source:

Team Mastery: how effective is it really?