-2.1% is the change from 811 to 794
Calculation steps:
[( 794 - 811 ) ÷ 811] x 100 = -2.1%
Formula
Percentage change = [(794 - 811) / 811] x 100
Subtract the new number by the original number
794 - 811 = -17
-17 ÷ 811 = -0.02096177558569667
-0.02096177558569667 x 100 = -2.1%