-21.01% is the change from 828 to 654
Calculation steps:
[( 654 - 828 ) ÷ 828] x 100 = -21.01%
Formula
Percentage change = [(654 - 828) / 828] x 100
Subtract the new number by the original number
654 - 828 = -174
-174 ÷ 828 = -0.21014492753623187
-0.21014492753623187 x 100 = -21.01%