-8.15% is the change from 834 to 766
Calculation steps:
[( 766 - 834 ) ÷ 834] x 100 = -8.15%
Formula
Percentage change = [(766 - 834) / 834] x 100
Subtract the new number by the original number
766 - 834 = -68
-68 ÷ 834 = -0.0815347721822542
-0.0815347721822542 x 100 = -8.15%