-66.47% is the change from 856 to 287
Calculation steps:
[( 287 - 856 ) ÷ 856] x 100 = -66.47%
Formula
Percentage change = [(287 - 856) / 856] x 100
Subtract the new number by the original number
287 - 856 = -569
-569 ÷ 856 = -0.6647196261682243
-0.6647196261682243 x 100 = -66.47%