-64.83% is the change from 816 to 287
Calculation steps:
[( 287 - 816 ) ÷ 816] x 100 = -64.83%
Formula
Percentage change = [(287 - 816) / 816] x 100
Subtract the new number by the original number
287 - 816 = -529
-529 ÷ 816 = -0.6482843137254902
-0.6482843137254902 x 100 = -64.83%