-99.76% is the change from 418 to 1
Calculation steps:
[( 1 - 418 ) ÷ 418] x 100 = -99.76%
Formula
Percentage change = [(1 - 418) / 418] x 100
Subtract the new number by the original number
1 - 418 = -417
-417 ÷ 418 = -0.9976076555023924
-0.9976076555023924 x 100 = -99.76%