-19.54% is the change from 829 to 667
Calculation steps:
[( 667 - 829 ) ÷ 829] x 100 = -19.54%
Formula
Percentage change = [(667 - 829) / 829] x 100
Subtract the new number by the original number
667 - 829 = -162
-162 ÷ 829 = -0.195416164053076
-0.195416164053076 x 100 = -19.54%