23.91% is the change from 230 to 285
Calculation steps:
[( 285 - 230 ) ÷ 230] x 100 = 23.91%
Formula
Percentage change = [(285 - 230) / 230] x 100
Subtract the new number by the original number
285 - 230 = 55
55 ÷ 230 = 0.2391304347826087
0.2391304347826087 x 100 = 23.91%