Develop an assignment plan that will minimize processing costs, given the information shown, and interpret your answer. Note: Because the number of jobs exceeds the number of workers, a dummy worker $($D$)$ with costs of $0$ must be added. $($Leave no cells blank $-$ be certain to enter $"0"$ wherever required.$)$

WORKER

A B C

$112811$

Job $213108$

$314914$

$410712$

Optimal Table

A B C D

$11030$

$22200$

$33160$

$40051$

find total cost