-68.53% is the change from 518 to 163
Calculation steps:
[( 163 - 518 ) ÷ 518] x 100 = -68.53%
Formula
Percentage change = [(163 - 518) / 518] x 100
Subtract the new number by the original number
163 - 518 = -355
-355 ÷ 518 = -0.6853281853281853
-0.6853281853281853 x 100 = -68.53%