-3.73% is the change from 857 to 825
Calculation steps:
[( 825 - 857 ) ÷ 857] x 100 = -3.73%
Formula
Percentage change = [(825 - 857) / 857] x 100
Subtract the new number by the original number
825 - 857 = -32
-32 ÷ 857 = -0.03733955659276546
-0.03733955659276546 x 100 = -3.73%