Given the below table generated by Excel Solver's sensitivity analysis:

What will happen to the objective value if the Melding Time is decreased by $60$ minutes?

Constraints

Final

Shadow

Constraint

Allowable

Allowable

Cell

Name

Value

Price

R$.$H$.$ Side

Increase

Decrease

$G$$10$

Plastic Availability $($KGs$)$

$200$

$3$

$200$

$300$

$100$

$G$$11$

Cutting Time $($minutes$)$

$400$

$2$

$400$

$100$

$50$

$G$$12$

Melding Time $($minutes$)$

$400$

$0$

$450$

$1$E$+30$

$50$

$G$$13$

Fixing time $($minutes$)$

$300$

$0$

$500$

$1$E$+30$

$200$

Question $4$ options:

The objective value will remain the same

The objective value will decrease by $450$

The objective value might change, we need to run solver again to find out

The objective value will increase by $60$

The objective value will increase by $450$

The objective value will decrease by $60$

The objective value will increase by $400$

The objective value will decrease by $400$