-79.73% is the change from 829 to 168
Calculation steps:
[( 168 - 829 ) ÷ 829] x 100 = -79.73%
Formula
Percentage change = [(168 - 829) / 829] x 100
Subtract the new number by the original number
168 - 829 = -661
-661 ÷ 829 = -0.7973462002412546
-0.7973462002412546 x 100 = -79.73%