How do I calculate a set’s overall effect?

A set’s overall effect is the total of its active item effects, its active effect (if any), and all the passive effects that you have.

If the set’s active effect and your passive effects increase the same parameter as the set’s active item effects, then the overall effect is calculated as follows:

y = ((1 + y1/100) * (1 + y2/100) * (1 + y3/100) - 1) * 100, where

y1 is the percentage increase to the parameter provided by active item effects,

y2 is the percentage increase to the parameter provided by the set’s active effect, and

y3 is the percentage increase to the parameter provided by passive effects.

The overall effect is shown rounded up to the nearest whole number.

y = ((1 + 0,45) * (1 + 0,05) * (1 + 0,07) - 1) * 100 = 63%