96.47% is the change from 340 to 668
Calculation steps:
[( 668 - 340 ) ÷ 340] x 100 = 96.47%
Formula
Percentage change = [(668 - 340) / 340] x 100
Subtract the new number by the original number
668 - 340 = 328
328 ÷ 340 = 0.9647058823529412
0.9647058823529412 x 100 = 96.47%