-11.1% is the change from 811 to 721
Calculation steps:
[( 721 - 811 ) ÷ 811] x 100 = -11.1%
Formula
Percentage change = [(721 - 811) / 811] x 100
Subtract the new number by the original number
721 - 811 = -90
-90 ÷ 811 = -0.11097410604192355
-0.11097410604192355 x 100 = -11.1%