-2.84% is the change from 811 to 788
Calculation steps:
[( 788 - 811 ) ÷ 811] x 100 = -2.84%
Formula
Percentage change = [(788 - 811) / 811] x 100
Subtract the new number by the original number
788 - 811 = -23
-23 ÷ 811 = -0.02836004932182491
-0.02836004932182491 x 100 = -2.84%