-0.5% is the change from 807 to 803
Calculation steps:
[( 803 - 807 ) ÷ 807] x 100 = -0.5%
Formula
Percentage change = [(803 - 807) / 807] x 100
Subtract the new number by the original number
803 - 807 = -4
-4 ÷ 807 = -0.004956629491945477
-0.004956629491945477 x 100 = -0.5%