-66.34% is the change from 829 to 279
Calculation steps:
[( 279 - 829 ) ÷ 829] x 100 = -66.34%
Formula
Percentage change = [(279 - 829) / 829] x 100
Subtract the new number by the original number
279 - 829 = -550
-550 ÷ 829 = -0.6634499396863691
-0.6634499396863691 x 100 = -66.34%