-8.58% is the change from 839 to 767
Calculation steps:
[( 767 - 839 ) ÷ 839] x 100 = -8.58%
Formula
Percentage change = [(767 - 839) / 839] x 100
Subtract the new number by the original number
767 - 839 = -72
-72 ÷ 839 = -0.08581644815256258
-0.08581644815256258 x 100 = -8.58%