-76.58% is the change from 871 to 204
Calculation steps:
[( 204 - 871 ) ÷ 871] x 100 = -76.58%
Formula
Percentage change = [(204 - 871) / 871] x 100
Subtract the new number by the original number
204 - 871 = -667
-667 ÷ 871 = -0.7657864523536165
-0.7657864523536165 x 100 = -76.58%