-3.62% is the change from 828 to 798
Calculation steps:
[( 798 - 828 ) ÷ 828] x 100 = -3.62%
Formula
Percentage change = [(798 - 828) / 828] x 100
Subtract the new number by the original number
798 - 828 = -30
-30 ÷ 828 = -0.036231884057971016
-0.036231884057971016 x 100 = -3.62%