-66.34% is the change from 823 to 277
Calculation steps:
[( 277 - 823 ) ÷ 823] x 100 = -66.34%
Formula
Percentage change = [(277 - 823) / 823] x 100
Subtract the new number by the original number
277 - 823 = -546
-546 ÷ 823 = -0.6634264884568651
-0.6634264884568651 x 100 = -66.34%
Example