-67.97% is the change from 871 to 279
Calculation steps:
[( 279 - 871 ) ÷ 871] x 100 = -67.97%
Formula
Percentage change = [(279 - 871) / 871] x 100
Subtract the new number by the original number
279 - 871 = -592
-592 ÷ 871 = -0.6796785304247991
-0.6796785304247991 x 100 = -67.97%