-10.31% is the change from 766 to 687
Calculation steps:
[( 687 - 766 ) ÷ 766] x 100 = -10.31%
Formula
Percentage change = [(687 - 766) / 766] x 100
Subtract the new number by the original number
687 - 766 = -79
-79 ÷ 766 = -0.1031331592689295
-0.1031331592689295 x 100 = -10.31%