914.29% is the change from 42 to 426
Calculation steps:
[( 426 - 42 ) ÷ 42] x 100 = 914.29%
Formula
Percentage change = [(426 - 42) / 42] x 100
Subtract the new number by the original number
426 - 42 = 384
384 ÷ 42 = 9.142857142857142
9.142857142857142 x 100 = 914.29%