118.53% is the change from 421 to 920
Calculation steps:
[( 920 - 421 ) ÷ 421] x 100 = 118.53%
Formula
Percentage change = [(920 - 421) / 421] x 100
Subtract the new number by the original number
920 - 421 = 499
499 ÷ 421 = 1.185273159144893
1.185273159144893 x 100 = 118.53%