-12.83% is the change from 787 to 686
Calculation steps:
[( 686 - 787 ) ÷ 787] x 100 = -12.83%
Formula
Percentage change = [(686 - 787) / 787] x 100
Subtract the new number by the original number
686 - 787 = -101
-101 ÷ 787 = -0.12833545108005082
-0.12833545108005082 x 100 = -12.83%