-97.94% is the change from 827 to 17
Calculation steps:
[( 17 - 827 ) ÷ 827] x 100 = -97.94%
Formula
Percentage change = [(17 - 827) / 827] x 100
Subtract the new number by the original number
17 - 827 = -810
-810 ÷ 827 = -0.9794437726723095
-0.9794437726723095 x 100 = -97.94%