-0.49% is the change from 814 to 810
Calculation steps:
[( 810 - 814 ) ÷ 814] x 100 = -0.49%
Formula
Percentage change = [(810 - 814) / 814] x 100
Subtract the new number by the original number
810 - 814 = -4
-4 ÷ 814 = -0.004914004914004914
-0.004914004914004914 x 100 = -0.49%