-52.61% is the change from 825 to 391
Calculation steps:
[( 391 - 825 ) ÷ 825] x 100 = -52.61%
Formula
Percentage change = [(391 - 825) / 825] x 100
Subtract the new number by the original number
391 - 825 = -434
-434 ÷ 825 = -0.526060606060606
-0.526060606060606 x 100 = -52.61%