-65.19% is the change from 813 to 283
Calculation steps:
[( 283 - 813 ) ÷ 813] x 100 = -65.19%
Formula
Percentage change = [(283 - 813) / 813] x 100
Subtract the new number by the original number
283 - 813 = -530
-530 ÷ 813 = -0.6519065190651907
-0.6519065190651907 x 100 = -65.19%