-99.63% is the change from 803 to 3
Calculation steps:
[( 3 - 803 ) ÷ 803] x 100 = -99.63%
Formula
Percentage change = [(3 - 803) / 803] x 100
Subtract the new number by the original number
3 - 803 = -800
-800 ÷ 803 = -0.9962640099626401
-0.9962640099626401 x 100 = -99.63%