-92.87% is the change from 897 to 64
Calculation steps:
[( 64 - 897 ) ÷ 897] x 100 = -92.87%
Formula
Percentage change = [(64 - 897) / 897] x 100
Subtract the new number by the original number
64 - 897 = -833
-833 ÷ 897 = -0.9286510590858417
-0.9286510590858417 x 100 = -92.87%