-98.88% is the change from 803 to 9
Calculation steps:
[( 9 - 803 ) ÷ 803] x 100 = -98.88%
Formula
Percentage change = [(9 - 803) / 803] x 100
Subtract the new number by the original number
9 - 803 = -794
-794 ÷ 803 = -0.9887920298879203
-0.9887920298879203 x 100 = -98.88%