-81.64% is the change from 828 to 152
Calculation steps:
[( 152 - 828 ) ÷ 828] x 100 = -81.64%
Formula
Percentage change = [(152 - 828) / 828] x 100
Subtract the new number by the original number
152 - 828 = -676
-676 ÷ 828 = -0.8164251207729468
-0.8164251207729468 x 100 = -81.64%