-7.92% is the change from 871 to 802
Calculation steps:
[( 802 - 871 ) ÷ 871] x 100 = -7.92%
Formula
Percentage change = [(802 - 871) / 871] x 100
Subtract the new number by the original number
802 - 871 = -69
-69 ÷ 871 = -0.07921928817451206
-0.07921928817451206 x 100 = -7.92%