-97.89% is the change from 805 to 17
Calculation steps:
[( 17 - 805 ) ÷ 805] x 100 = -97.89%
Formula
Percentage change = [(17 - 805) / 805] x 100
Subtract the new number by the original number
17 - 805 = -788
-788 ÷ 805 = -0.9788819875776398
-0.9788819875776398 x 100 = -97.89%