TERM			Invoice Amount
Invoice NAME	Start	End
5452952	11/30/2013	10/31/2015		69,500.00
8188	8/1/2013	7/31/2014		1,000.00
8189	8/1/2014	7/31/2015		1,000.00
3686223	3/11/2014	12/18/2014		1,166.67
3664490	12/19/2013	12/18/2014		5,800.00
USINV-022647	5/29/2014	5/28/2015		7,600.00
00091849	12/26/2013	7/25/2014		500.00
00082204	7/26/2014	7/25/2015		750.00

The above includes information pertaining to the terms and invoice amounts of several prepaid expenses. Calculate the monthly amortization using the quarter of a month depreciation method (.25, .5, .75).