-3.39% is the change from 827 to 799
Calculation steps:
[( 799 - 827 ) ÷ 827] x 100 = -3.39%
Formula
Percentage change = [(799 - 827) / 827] x 100
Subtract the new number by the original number
799 - 827 = -28
-28 ÷ 827 = -0.03385731559854897
-0.03385731559854897 x 100 = -3.39%