78.82% is the change from 340 to 608
Calculation steps:
[( 608 - 340 ) ÷ 340] x 100 = 78.82%
Formula
Percentage change = [(608 - 340) / 340] x 100
Subtract the new number by the original number
608 - 340 = 268
268 ÷ 340 = 0.788235294117647
0.788235294117647 x 100 = 78.82%