-3.58% is the change from 838 to 808
Calculation steps:
[( 808 - 838 ) ÷ 838] x 100 = -3.58%
Formula
Percentage change = [(808 - 838) / 838] x 100
Subtract the new number by the original number
808 - 838 = -30
-30 ÷ 838 = -0.03579952267303103
-0.03579952267303103 x 100 = -3.58%