20.35% is the change from 457 to 550
Calculation steps:
[( 550 - 457 ) ÷ 457] x 100 = 20.35%
Formula
Percentage change = [(550 - 457) / 457] x 100
Subtract the new number by the original number
550 - 457 = 93
93 ÷ 457 = 0.20350109409190373
0.20350109409190373 x 100 = 20.35%