-5.65% is the change from 531 to 501
Calculation steps:
[( 501 - 531 ) ÷ 531] x 100 = -5.65%
Formula
Percentage change = [(501 - 531) / 531] x 100
Subtract the new number by the original number
501 - 531 = -30
-30 ÷ 531 = -0.05649717514124294
-0.05649717514124294 x 100 = -5.65%