-65.71% is the change from 837 to 287
Calculation steps:
[( 287 - 837 ) ÷ 837] x 100 = -65.71%
Formula
Percentage change = [(287 - 837) / 837] x 100
Subtract the new number by the original number
287 - 837 = -550
-550 ÷ 837 = -0.6571087216248507
-0.6571087216248507 x 100 = -65.71%