-64.94% is the change from 810 to 284
Calculation steps:
[( 284 - 810 ) ÷ 810] x 100 = -64.94%
Formula
Percentage change = [(284 - 810) / 810] x 100
Subtract the new number by the original number
284 - 810 = -526
-526 ÷ 810 = -0.6493827160493827
-0.6493827160493827 x 100 = -64.94%