-2.64% is the change from 531 to 517
Calculation steps:
[( 517 - 531 ) ÷ 531] x 100 = -2.64%
Formula
Percentage change = [(517 - 531) / 531] x 100
Subtract the new number by the original number
517 - 531 = -14
-14 ÷ 531 = -0.026365348399246705
-0.026365348399246705 x 100 = -2.64%