-66.59% is the change from 829 to 277
Calculation steps:
[( 277 - 829 ) ÷ 829] x 100 = -66.59%
Formula
Percentage change = [(277 - 829) / 829] x 100
Subtract the new number by the original number
277 - 829 = -552
-552 ÷ 829 = -0.6658624849215923
-0.6658624849215923 x 100 = -66.59%