0.49% is the change from 811 to 815
Calculation steps:
[( 815 - 811 ) ÷ 811] x 100 = 0.49%
Formula
Percentage change = [(815 - 811) / 811] x 100
Subtract the new number by the original number
815 - 811 = 4
4 ÷ 811 = 0.004932182490752158
0.004932182490752158 x 100 = 0.49%