4240% is the change from 10 to 434
Calculation steps:
[( 434 - 10 ) ÷ 10] x 100 = 4240%
Formula
Percentage change = [(434 - 10) / 10] x 100
Subtract the new number by the original number
434 - 10 = 424
424 ÷ 10 = 42.4
42.4 x 100 = 4240%
Example