-63.28% is the change from 531 to 195
Calculation steps:
[( 195 - 531 ) ÷ 531] x 100 = -63.28%
Formula
Percentage change = [(195 - 531) / 531] x 100
Subtract the new number by the original number
195 - 531 = -336
-336 ÷ 531 = -0.632768361581921
-0.632768361581921 x 100 = -63.28%