-68.59% is the change from 519 to 163
Calculation steps:
[( 163 - 519 ) ÷ 519] x 100 = -68.59%
Formula
Percentage change = [(163 - 519) / 519] x 100
Subtract the new number by the original number
163 - 519 = -356
-356 ÷ 519 = -0.6859344894026975
-0.6859344894026975 x 100 = -68.59%