500
                                You receive a portion change letter from the HA on Feb 15, 2016.  
The tenant portion is going from $580 to $720, and the Sec 8 portion is going from $320 to $180.  
The change will be retroactively effective Oct 1, 2015.  
Both the HA and the Tenant have been paying their full portions of $580 and $320 since move in including Feb 2016. 
Sec 8 has a zero balance as of this letter and the tenant has a balance of $25 for an unpaid late fee. 
Who will you collect from after the change is made?  How much will you need to collect?
                                5 mos. x $140 = $700 tenant owes + $25 late fees = $725