-94.44% is the change from 809 to 45
Calculation steps:
[( 45 - 809 ) ÷ 809] x 100 = -94.44%
Formula
Percentage change = [(45 - 809) / 809] x 100
Subtract the new number by the original number
45 - 809 = -764
-764 ÷ 809 = -0.9443757725587144
-0.9443757725587144 x 100 = -94.44%