135.61% is the change from 424 to 999
Calculation steps:
[( 999 - 424 ) ÷ 424] x 100 = 135.61%
Formula
Percentage change = [(999 - 424) / 424] x 100
Subtract the new number by the original number
999 - 424 = 575
575 ÷ 424 = 1.3561320754716981
1.3561320754716981 x 100 = 135.61%