-97.52% is the change from 807 to 20
Calculation steps:
[( 20 - 807 ) ÷ 807] x 100 = -97.52%
Formula
Percentage change = [(20 - 807) / 807] x 100
Subtract the new number by the original number
20 - 807 = -787
-787 ÷ 807 = -0.9752168525402726
-0.9752168525402726 x 100 = -97.52%