-0.2% is the change from 493 to 492
Calculation steps:
[( 492 - 493 ) ÷ 493] x 100 = -0.2%
Formula
Percentage change = [(492 - 493) / 493] x 100
Subtract the new number by the original number
492 - 493 = -1
-1 ÷ 493 = -0.002028397565922921
-0.002028397565922921 x 100 = -0.2%