-17.7% is the change from 825 to 679
Calculation steps:
[( 679 - 825 ) ÷ 825] x 100 = -17.7%
Formula
Percentage change = [(679 - 825) / 825] x 100
Subtract the new number by the original number
679 - 825 = -146
-146 ÷ 825 = -0.17696969696969697
-0.17696969696969697 x 100 = -17.7%