-4.09% is the change from 513 to 492
Calculation steps:
[( 492 - 513 ) ÷ 513] x 100 = -4.09%
Formula
Percentage change = [(492 - 513) / 513] x 100
Subtract the new number by the original number
492 - 513 = -21
-21 ÷ 513 = -0.04093567251461988
-0.04093567251461988 x 100 = -4.09%