-49.39% is the change from 818 to 414
Calculation steps:
[( 414 - 818 ) ÷ 818] x 100 = -49.39%
Formula
Percentage change = [(414 - 818) / 818] x 100
Subtract the new number by the original number
414 - 818 = -404
-404 ÷ 818 = -0.4938875305623472
-0.4938875305623472 x 100 = -49.39%