99.71% is the change from 342 to 683
Calculation steps:
[( 683 - 342 ) ÷ 342] x 100 = 99.71%
Formula
Percentage change = [(683 - 342) / 342] x 100
Subtract the new number by the original number
683 - 342 = 341
341 ÷ 342 = 0.9970760233918129
0.9970760233918129 x 100 = 99.71%