-3.89% is the change from 849 to 816
Calculation steps:
[( 816 - 849 ) ÷ 849] x 100 = -3.89%
Formula
Percentage change = [(816 - 849) / 849] x 100
Subtract the new number by the original number
816 - 849 = -33
-33 ÷ 849 = -0.038869257950530034
-0.038869257950530034 x 100 = -3.89%