-19.69% is the change from 838 to 673
Calculation steps:
[( 673 - 838 ) ÷ 838] x 100 = -19.69%
Formula
Percentage change = [(673 - 838) / 838] x 100
Subtract the new number by the original number
673 - 838 = -165
-165 ÷ 838 = -0.19689737470167065
-0.19689737470167065 x 100 = -19.69%