-92.74% is the change from 909 to 66
Calculation steps:
[( 66 - 909 ) ÷ 909] x 100 = -92.74%
Formula
Percentage change = [(66 - 909) / 909] x 100
Subtract the new number by the original number
66 - 909 = -843
-843 ÷ 909 = -0.9273927392739274
-0.9273927392739274 x 100 = -92.74%