-17.6% is the change from 824 to 679
Calculation steps:
[( 679 - 824 ) ÷ 824] x 100 = -17.6%
Formula
Percentage change = [(679 - 824) / 824] x 100
Subtract the new number by the original number
679 - 824 = -145
-145 ÷ 824 = -0.17597087378640777
-0.17597087378640777 x 100 = -17.6%