48.48% is the change from 231 to 343
Calculation steps:
[( 343 - 231 ) ÷ 231] x 100 = 48.48%
Formula
Percentage change = [(343 - 231) / 231] x 100
Subtract the new number by the original number
343 - 231 = 112
112 ÷ 231 = 0.48484848484848486
0.48484848484848486 x 100 = 48.48%