-2.28% is the change from 835 to 816
Calculation steps:
[( 816 - 835 ) ÷ 835] x 100 = -2.28%
Formula
Percentage change = [(816 - 835) / 835] x 100
Subtract the new number by the original number
816 - 835 = -19
-19 ÷ 835 = -0.022754491017964073
-0.022754491017964073 x 100 = -2.28%