-29.05% is the change from 871 to 618
Calculation steps:
[( 618 - 871 ) ÷ 871] x 100 = -29.05%
Formula
Percentage change = [(618 - 871) / 871] x 100
Subtract the new number by the original number
618 - 871 = -253
-253 ÷ 871 = -0.2904707233065442
-0.2904707233065442 x 100 = -29.05%