-18.7% is the change from 829 to 674
Calculation steps:
[( 674 - 829 ) ÷ 829] x 100 = -18.7%
Formula
Percentage change = [(674 - 829) / 829] x 100
Subtract the new number by the original number
674 - 829 = -155
-155 ÷ 829 = -0.18697225572979492
-0.18697225572979492 x 100 = -18.7%