-2.82% is the change from 531 to 516
Calculation steps:
[( 516 - 531 ) ÷ 531] x 100 = -2.82%
Formula
Percentage change = [(516 - 531) / 531] x 100
Subtract the new number by the original number
516 - 531 = -15
-15 ÷ 531 = -0.02824858757062147
-0.02824858757062147 x 100 = -2.82%