-93.36% is the change from 828 to 55
Calculation steps:
[( 55 - 828 ) ÷ 828] x 100 = -93.36%
Formula
Percentage change = [(55 - 828) / 828] x 100
Subtract the new number by the original number
55 - 828 = -773
-773 ÷ 828 = -0.9335748792270532
-0.9335748792270532 x 100 = -93.36%