-19.75% is the change from 871 to 699
Calculation steps:
[( 699 - 871 ) ÷ 871] x 100 = -19.75%
Formula
Percentage change = [(699 - 871) / 871] x 100
Subtract the new number by the original number
699 - 871 = -172
-172 ÷ 871 = -0.19747416762342135
-0.19747416762342135 x 100 = -19.75%