-64.94% is the change from 813 to 285
Calculation steps:
[( 285 - 813 ) ÷ 813] x 100 = -64.94%
Formula
Percentage change = [(285 - 813) / 813] x 100
Subtract the new number by the original number
285 - 813 = -528
-528 ÷ 813 = -0.6494464944649446
-0.6494464944649446 x 100 = -64.94%