-33.75% is the change from 871 to 577
Calculation steps:
[( 577 - 871 ) ÷ 871] x 100 = -33.75%
Formula
Percentage change = [(577 - 871) / 871] x 100
Subtract the new number by the original number
577 - 871 = -294
-294 ÷ 871 = -0.3375430539609644
-0.3375430539609644 x 100 = -33.75%