-64.98% is the change from 871 to 305
Calculation steps:
[( 305 - 871 ) ÷ 871] x 100 = -64.98%
Formula
Percentage change = [(305 - 871) / 871] x 100
Subtract the new number by the original number
305 - 871 = -566
-566 ÷ 871 = -0.6498277841561424
-0.6498277841561424 x 100 = -64.98%