-61.39% is the change from 518 to 200
Calculation steps:
[( 200 - 518 ) ÷ 518] x 100 = -61.39%
Formula
Percentage change = [(200 - 518) / 518] x 100
Subtract the new number by the original number
200 - 518 = -318
-318 ÷ 518 = -0.6138996138996139
-0.6138996138996139 x 100 = -61.39%