-64.61% is the change from 811 to 287
Calculation steps:
[( 287 - 811 ) ÷ 811] x 100 = -64.61%
Formula
Percentage change = [(287 - 811) / 811] x 100
Subtract the new number by the original number
287 - 811 = -524
-524 ÷ 811 = -0.6461159062885327
-0.6461159062885327 x 100 = -64.61%