-99.84% is the change from 626 to 1
Calculation steps:
[( 1 - 626 ) ÷ 626] x 100 = -99.84%
Formula
Percentage change = [(1 - 626) / 626] x 100
Subtract the new number by the original number
1 - 626 = -625
-625 ÷ 626 = -0.9984025559105432
-0.9984025559105432 x 100 = -99.84%