How much would the LG Xenon cost if i haven't filled my 2 year contract with my old phone ?

I have 3 more months until my 2 year contract is up but im sick of my phone and would really like a new one for the start of school .

Anyway , how much more would it cost me ? I want to get a 3 year plan for the Xenon , so how much do you think it will cost me ?How much would the LG Xenon cost if i haven't filled my 2 year contract with my old phone ?
Some providers allow you an upgrade as long as you are at least a year into your contract, call your service provider and find out if they offer thatHow much would the LG Xenon cost if i haven't filled my 2 year contract with my old phone ?
$50