-80.48% is the change from 825 to 161
Calculation steps:
[( 161 - 825 ) ÷ 825] x 100 = -80.48%
Formula
Percentage change = [(161 - 825) / 825] x 100
Subtract the new number by the original number
161 - 825 = -664
-664 ÷ 825 = -0.8048484848484848
-0.8048484848484848 x 100 = -80.48%