-78.5% is the change from 828 to 178
Calculation steps:
[( 178 - 828 ) ÷ 828] x 100 = -78.5%
Formula
Percentage change = [(178 - 828) / 828] x 100
Subtract the new number by the original number
178 - 828 = -650
-650 ÷ 828 = -0.785024154589372
-0.785024154589372 x 100 = -78.5%