99.56% is the change from 229 to 457
Calculation steps:
[( 457 - 229 ) ÷ 229] x 100 = 99.56%
Formula
Percentage change = [(457 - 229) / 229] x 100
Subtract the new number by the original number
457 - 229 = 228
228 ÷ 229 = 0.9956331877729258
0.9956331877729258 x 100 = 99.56%