46.76% is the change from 340 to 499
Calculation steps:
[( 499 - 340 ) ÷ 340] x 100 = 46.76%
Formula
Percentage change = [(499 - 340) / 340] x 100
Subtract the new number by the original number
499 - 340 = 159
159 ÷ 340 = 0.4676470588235294
0.4676470588235294 x 100 = 46.76%