-8.1% is the change from 531 to 488
Calculation steps:
[( 488 - 531 ) ÷ 531] x 100 = -8.1%
Formula
Percentage change = [(488 - 531) / 531] x 100
Subtract the new number by the original number
488 - 531 = -43
-43 ÷ 531 = -0.08097928436911488
-0.08097928436911488 x 100 = -8.1%