-81.58% is the change from 418 to 77
Calculation steps:
[( 77 - 418 ) ÷ 418] x 100 = -81.58%
Formula
Percentage change = [(77 - 418) / 418] x 100
Subtract the new number by the original number
77 - 418 = -341
-341 ÷ 418 = -0.8157894736842105
-0.8157894736842105 x 100 = -81.58%