-24.64% is the change from 828 to 624
Calculation steps:
[( 624 - 828 ) ÷ 828] x 100 = -24.64%
Formula
Percentage change = [(624 - 828) / 828] x 100
Subtract the new number by the original number
624 - 828 = -204
-204 ÷ 828 = -0.2463768115942029
-0.2463768115942029 x 100 = -24.64%