-3.25% is the change from 831 to 804
Calculation steps:
[( 804 - 831 ) ÷ 831] x 100 = -3.25%
Formula
Percentage change = [(804 - 831) / 831] x 100
Subtract the new number by the original number
804 - 831 = -27
-27 ÷ 831 = -0.032490974729241874
-0.032490974729241874 x 100 = -3.25%