-97.79% is the change from 906 to 20
Calculation steps:
[( 20 - 906 ) ÷ 906] x 100 = -97.79%
Formula
Percentage change = [(20 - 906) / 906] x 100
Subtract the new number by the original number
20 - 906 = -886
-886 ÷ 906 = -0.977924944812362
-0.977924944812362 x 100 = -97.79%