99.57% is the change from 230 to 459
Calculation steps:
[( 459 - 230 ) ÷ 230] x 100 = 99.57%
Formula
Percentage change = [(459 - 230) / 230] x 100
Subtract the new number by the original number
459 - 230 = 229
229 ÷ 230 = 0.9956521739130435
0.9956521739130435 x 100 = 99.57%