-3.55% is the change from 846 to 816
Calculation steps:
[( 816 - 846 ) ÷ 846] x 100 = -3.55%
Formula
Percentage change = [(816 - 846) / 846] x 100
Subtract the new number by the original number
816 - 846 = -30
-30 ÷ 846 = -0.03546099290780142
-0.03546099290780142 x 100 = -3.55%