46.18% is the change from 340 to 497
Calculation steps:
[( 497 - 340 ) ÷ 340] x 100 = 46.18%
Formula
Percentage change = [(497 - 340) / 340] x 100
Subtract the new number by the original number
497 - 340 = 157
157 ÷ 340 = 0.46176470588235297
0.46176470588235297 x 100 = 46.18%