Here are formulas for calculating your House fees in the event you move in or move out in middle of month:
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A) MOVE IN
you move in mid month
FEE = (House fee per month) * ( days in that month - number of days in that
month before move-in date ) / days in that month
For example: move in June 20 and double room with roommate:
$580/mo = double room fee
19 = 19 days in that month before move-in date of June 20:
30 days in June
580*(30-19)/30
B) MOVE OUT
you move out mid month
FEE = (House fee per month) * ( move-out day ) / (days in that month)
for example, double room fee ($580/mo) and move out June 20:
580*(20/30)
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TIPS: Just copy and paste the formula (for example 580*(30-19)/30 ) into a google search window and google will calculate the result.
30 days has sept, april, june and november, all the rest have 31 except Feb which has 28 (but usually has 29 every 4 years)