102.65% is the change from 340 to 689
Calculation steps:
[( 689 - 340 ) ÷ 340] x 100 = 102.65%
Formula
Percentage change = [(689 - 340) / 340] x 100
Subtract the new number by the original number
689 - 340 = 349
349 ÷ 340 = 1.026470588235294
1.026470588235294 x 100 = 102.65%