-54.8% is the change from 531 to 240
Calculation steps:
[( 240 - 531 ) ÷ 531] x 100 = -54.8%
Formula
Percentage change = [(240 - 531) / 531] x 100
Subtract the new number by the original number
240 - 531 = -291
-291 ÷ 531 = -0.5480225988700564
-0.5480225988700564 x 100 = -54.8%