-1.93% is the change from 827 to 811
Calculation steps:
[( 811 - 827 ) ÷ 827] x 100 = -1.93%
Formula
Percentage change = [(811 - 827) / 827] x 100
Subtract the new number by the original number
811 - 827 = -16
-16 ÷ 827 = -0.019347037484885126
-0.019347037484885126 x 100 = -1.93%