-25.36% is the change from 828 to 618
Calculation steps:
[( 618 - 828 ) ÷ 828] x 100 = -25.36%
Formula
Percentage change = [(618 - 828) / 828] x 100
Subtract the new number by the original number
618 - 828 = -210
-210 ÷ 828 = -0.2536231884057971
-0.2536231884057971 x 100 = -25.36%