-63.84% is the change from 531 to 192
Calculation steps:
[( 192 - 531 ) ÷ 531] x 100 = -63.84%
Formula
Percentage change = [(192 - 531) / 531] x 100
Subtract the new number by the original number
192 - 531 = -339
-339 ÷ 531 = -0.6384180790960452
-0.6384180790960452 x 100 = -63.84%