-66.12% is the change from 847 to 287
Calculation steps:
[( 287 - 847 ) ÷ 847] x 100 = -66.12%
Formula
Percentage change = [(287 - 847) / 847] x 100
Subtract the new number by the original number
287 - 847 = -560
-560 ÷ 847 = -0.6611570247933884
-0.6611570247933884 x 100 = -66.12%