Consider the transportation table below. The solution displayed was obtained by performing some iterations of the transportation method on this problem.

Destination

Source

$1$

$2$

$3$

Capacity

Upper A

$$$$30$

$$$$30$

$$$$5$

$60$

$30$

$30$

Upper B

$$$$10$

$$$$10$

$$$$10$

$20$

$20$

Upper C

$$$$20$

$$$$10$

$$$$25$

$50$

$10$

$40$

Demand

$30$

$30$

$70$

Part $2$

The total cost of the current solution provided$=$

$$

enter your response here dollars.