-2.59% is the change from 811 to 790
Calculation steps:
[( 790 - 811 ) ÷ 811] x 100 = -2.59%
Formula
Percentage change = [(790 - 811) / 811] x 100
Subtract the new number by the original number
790 - 811 = -21
-21 ÷ 811 = -0.025893958076448828
-0.025893958076448828 x 100 = -2.59%