-0.37% is the change from 811 to 808
Calculation steps:
[( 808 - 811 ) ÷ 811] x 100 = -0.37%
Formula
Percentage change = [(808 - 811) / 811] x 100
Subtract the new number by the original number
808 - 811 = -3
-3 ÷ 811 = -0.0036991368680641184
-0.0036991368680641184 x 100 = -0.37%