-90.86% is the change from 810 to 74
Calculation steps:
[( 74 - 810 ) ÷ 810] x 100 = -90.86%
Formula
Percentage change = [(74 - 810) / 810] x 100
Subtract the new number by the original number
74 - 810 = -736
-736 ÷ 810 = -0.908641975308642
-0.908641975308642 x 100 = -90.86%