-1.6% is the change from 812 to 799
Calculation steps:
[( 799 - 812 ) ÷ 812] x 100 = -1.6%
Formula
Percentage change = [(799 - 812) / 812] x 100
Subtract the new number by the original number
799 - 812 = -13
-13 ÷ 812 = -0.01600985221674877
-0.01600985221674877 x 100 = -1.6%