-78.26% is the change from 828 to 180
Calculation steps:
[( 180 - 828 ) ÷ 828] x 100 = -78.26%
Formula
Percentage change = [(180 - 828) / 828] x 100
Subtract the new number by the original number
180 - 828 = -648
-648 ÷ 828 = -0.782608695652174
-0.782608695652174 x 100 = -78.26%