73.04% is the change from 230 to 398
Calculation steps:
[( 398 - 230 ) ÷ 230] x 100 = 73.04%
Formula
Percentage change = [(398 - 230) / 230] x 100
Subtract the new number by the original number
398 - 230 = 168
168 ÷ 230 = 0.7304347826086957
0.7304347826086957 x 100 = 73.04%