108.7% is the change from 230 to 480
Calculation steps:
[( 480 - 230 ) ÷ 230] x 100 = 108.7%
Formula
Percentage change = [(480 - 230) / 230] x 100
Subtract the new number by the original number
480 - 230 = 250
250 ÷ 230 = 1.0869565217391304
1.0869565217391304 x 100 = 108.7%