-97.54% is the change from 814 to 20
Calculation steps:
[( 20 - 814 ) ÷ 814] x 100 = -97.54%
Formula
Percentage change = [(20 - 814) / 814] x 100
Subtract the new number by the original number
20 - 814 = -794
-794 ÷ 814 = -0.9754299754299754
-0.9754299754299754 x 100 = -97.54%