845.88% is the change from 85 to 804
Calculation steps:
[( 804 - 85 ) ÷ 85] x 100 = 845.88%
Formula
Percentage change = [(804 - 85) / 85] x 100
Subtract the new number by the original number
804 - 85 = 719
719 ÷ 85 = 8.458823529411765
8.458823529411765 x 100 = 845.88%