-65.07% is the change from 813 to 284
Calculation steps:
[( 284 - 813 ) ÷ 813] x 100 = -65.07%
Formula
Percentage change = [(284 - 813) / 813] x 100
Subtract the new number by the original number
284 - 813 = -529
-529 ÷ 813 = -0.6506765067650676
-0.6506765067650676 x 100 = -65.07%