-39.85% is the change from 818 to 492
Calculation steps:
[( 492 - 818 ) ÷ 818] x 100 = -39.85%
Formula
Percentage change = [(492 - 818) / 818] x 100
Subtract the new number by the original number
492 - 818 = -326
-326 ÷ 818 = -0.39853300733496333
-0.39853300733496333 x 100 = -39.85%