0.29% is the change from 688 to 690
Calculation steps:
[( 690 - 688 ) ÷ 688] x 100 = 0.29%
Formula
Percentage change = [(690 - 688) / 688] x 100
Subtract the new number by the original number
690 - 688 = 2
2 ÷ 688 = 0.0029069767441860465
0.0029069767441860465 x 100 = 0.29%