-87.21% is the change from 813 to 104
Calculation steps:
[( 104 - 813 ) ÷ 813] x 100 = -87.21%
Formula
Percentage change = [(104 - 813) / 813] x 100
Subtract the new number by the original number
104 - 813 = -709
-709 ÷ 813 = -0.8720787207872078
-0.8720787207872078 x 100 = -87.21%