-92.64% is the change from 897 to 66
Calculation steps:
[( 66 - 897 ) ÷ 897] x 100 = -92.64%
Formula
Percentage change = [(66 - 897) / 897] x 100
Subtract the new number by the original number
66 - 897 = -831
-831 ÷ 897 = -0.9264214046822743
-0.9264214046822743 x 100 = -92.64%