-96.36% is the change from 825 to 30
Calculation steps:
[( 30 - 825 ) ÷ 825] x 100 = -96.36%
Formula
Percentage change = [(30 - 825) / 825] x 100
Subtract the new number by the original number
30 - 825 = -795
-795 ÷ 825 = -0.9636363636363636
-0.9636363636363636 x 100 = -96.36%