You have been tasked with determining if there is a faster, cheaper and better way to do the carrier selections. Using relevant information, you should:

$1)$ Develop a process or model to determine least$-$cost assignment of truckloads to carriers while meeting necessary requirements using the data given under Trips Day $1$ above.

$2)$ Use your method to solve the problem for the three other instances given to you $($Trips Days $2,3,$ and $4).$

$3)$ For each of the four example days given, calculate the daily savings as both a dollar amount and as a percentage of the original manual cost for that day.

$4)$ Estimate yearly savings using both the average dollars saved daily and an average percent saved $($applied to total yearly shipping costs$)$ using the four sample days you were provided. Which estimate for yearly savings do you think is more accurate and why? Explain.

$5)$ Make a recommendation, with justification, as to whether your new approach is worthwhile to continue.