What was the difference in the total between  Repatriation Tax on Undistributed Foreign Earnings and Purchase Obligations?
{"Debt Obligations (1) ": {"Total ": 288.3, "2020": 101.2, "2021-2022 ": 12.4, "2023-2024 ": 12.2, "2025 and\nthereafter": 162.5}, "Capital Lease Obligations (2) ": {"Total ": 49.8, "2020": 6.7, "2021-2022 ": 6.4, "2023-2024 ": 2.5, "2025 and\nthereafter": 34.2}, "Operating Lease Obligations": {"Total ": 40.8, "2020": 10.4, "2021-2022 ": 12.2, "2023-2024 ": 8.8, "2025 and\nthereafter": 9.4}, "Purchase Obligations (3) ": {"Total ": 620.0, "2020": 598.8, "2021-2022 ": 20.7, "2023-2024 ": 0.4, "2025 and\nthereafter": 0.1}, "Repatriation Tax on Undistributed Foreign Earnings (4)": {"Total ": 65.1, "2020": 5.5, "2021-2022 ": 11.4, "2023-2024 ": 16.3, "2025 and\nthereafter": 31.9}, "Other Liabilities on the Balance Sheet (5)": {"Total ": 15.0, "2020": 3.3, "2021-2022 ": 4.0, "2023-2024 ": 0.6, "2025 and\nthereafter": 7.1}, "Other Liabilities not on the Balance Sheet (6) ": {"Total ": 8.6, "2020": 1.8, "2021-2022 ": "\u2014", "2023-2024 ": 1.3, "2025 and\nthereafter": 5.5}, "Other Financing Obligations (7) ": {"Total ": 119.0, "2020": 4.3, "2021-2022 ": 9.0, "2023-2024 ": 9.4, "2025 and\nthereafter": 96.3}, "Total Contractual Cash Obligations ": {"Total ": 1206.6, "2020": 732.0, "2021-2022 ": 76.1, "2023-2024 ": 51.5, "2025 and\nthereafter": 347.0}}
purchase_obligations = df["Purchase Obligations (3) "]["Total "]
repatriation_tax = df["Repatriation Tax on Undistributed Foreign Earnings (4)"]["Total "]
answer = purchase_obligations - repatriation_tax