-1.6% is the change from 811 to 798
Calculation steps:
[( 798 - 811 ) ÷ 811] x 100 = -1.6%
Formula
Percentage change = [(798 - 811) / 811] x 100
Subtract the new number by the original number
798 - 811 = -13
-13 ÷ 811 = -0.016029593094944512
-0.016029593094944512 x 100 = -1.6%