GALEN
CONTRACT 1: $50 toward food and utility expenses for occasional occupancy
BEGINNING DATE: November 2nd
ENDING DATE: November 15th
Fees paid to Noah (50% Food, 50% Utilities)
Implications: Discount Hien and David 12.50 each toward November bills, payable by Noah.

CONTRACT 2: $4/Day, 1/4 of utilities for time period (all except telephone)
BEGININING DATE: November 15th
TENTATIVE ENDING DATE: December 17h

CONTRACT 3: Sublet of Noah's Room: December 18th-January 16th
Per Diem Expenses: $7/Night payable to Noah
1/3 of utilities divided between Noah and Galen via following formula:
VARIABLES:
X: Total Utilities (Sans Phone) for time period of December 18th-January 16th
Y: Phone
Z: % occupancy by Galen
A: Utilities owed by Noah: 
B: Utilities owed by Galen:
FORMULAS:
A= (100-Z)/100*X+(1/3*Y)
B=(Z/100)*X