-97.51% is the change from 802 to 20
Calculation steps:
[( 20 - 802 ) ÷ 802] x 100 = -97.51%
Formula
Percentage change = [(20 - 802) / 802] x 100
Subtract the new number by the original number
20 - 802 = -782
-782 ÷ 802 = -0.9750623441396509
-0.9750623441396509 x 100 = -97.51%