-96.52% is the change from 805 to 28
Calculation steps:
[( 28 - 805 ) ÷ 805] x 100 = -96.52%
Formula
Percentage change = [(28 - 805) / 805] x 100
Subtract the new number by the original number
28 - 805 = -777
-777 ÷ 805 = -0.9652173913043478
-0.9652173913043478 x 100 = -96.52%