Present Value Formula in Excel 2010 to a specific date

At work we have a specific software that produces analysis for bond deals we work on.  I need to replicate one of the reports in excel that relates to present value of cash flow savings.  The cash flows are semi-annual (3/1 & 9/1 beginning 9/1/2017)  The challenge is I need to be able to PV it back to 6/8/2017.   This means the  cash flow gets PV'd back to June 8, 2017 on a semi-annual cash flow basis.   Also note that the cash flow is related to a municipal bond so it would be on a 30/360 basis instead of act/365.  

Below are the cash flows I am trying to PV along with an excel file that shows the results of the PV from the software I am trying to match and my attempt to write a formula that matches the software result.    As you can see I can come within $144.86 but need to match perfectly.  

PV Date June 8, 2017

Date              Cash Flow
9/1/2017      580,230.17
3/1/2018      34,867.25
9/1/2018      (132.75)
3/1/2019      30,892.00
9/1/2019      5,892.00
3/1/2020      26,561.25
9/1/2020      6,561.25
3/1/2021      21,981.25
9/1/2021      11,981.25
3/1/2022      17,045.75
9/1/2022      17,045.75
3/1/2023      11,754.75
9/1/2023      21,754.75
3/1/2024      6,108.25
9/1/2024      31,108.25
U--Deal-Type-Folders-Urban-Renewal_.xlsx