0.15% is the change from 686 to 687
Calculation steps:
[( 687 - 686 ) ÷ 686] x 100 = 0.15%
Formula
Percentage change = [(687 - 686) / 686] x 100
Subtract the new number by the original number
687 - 686 = 1
1 ÷ 686 = 0.0014577259475218659
0.0014577259475218659 x 100 = 0.15%