c$.$ Using computer software, sort the list of manufacturers from largest to smallest using $2017$ year$-$to$-$date sales through February. Then, design a bar graph to illustrate the $2016$ and $2017$ year$-$to$-$date sales through February for the top $12$ manufacturers. Also, design a bar graph to illustrate the percentage change for the top $12$ manufacturers. Compare these two graphs and prepare brief written comments.