-99.88% is the change from 825 to 1
Calculation steps:
[( 1 - 825 ) ÷ 825] x 100 = -99.88%
Formula
Percentage change = [(1 - 825) / 825] x 100
Subtract the new number by the original number
1 - 825 = -824
-824 ÷ 825 = -0.9987878787878788
-0.9987878787878788 x 100 = -99.88%