42500% is the change from 1 to 426
Calculation steps:
[( 426 - 1 ) ÷ 1] x 100 = 42500%
Formula
Percentage change = [(426 - 1) / 1] x 100
Subtract the new number by the original number
426 - 1 = 425
425 ÷ 1 = 425
425 x 100 = 42500%
Example