-99.75% is the change from 407 to 1
Calculation steps:
[( 1 - 407 ) ÷ 407] x 100 = -99.75%
Formula
Percentage change = [(1 - 407) / 407] x 100
Subtract the new number by the original number
1 - 407 = -406
-406 ÷ 407 = -0.9975429975429976
-0.9975429975429976 x 100 = -99.75%