-71.62% is the change from 828 to 235
Calculation steps:
[( 235 - 828 ) ÷ 828] x 100 = -71.62%
Formula
Percentage change = [(235 - 828) / 828] x 100
Subtract the new number by the original number
235 - 828 = -593
-593 ÷ 828 = -0.716183574879227
-0.716183574879227 x 100 = -71.62%