I need to estimate the FFO (Funds From Operations) / Net Debt ratio for 2022.

**Step 1: Determine Net Debt**

Net Debt at end of 2022 (i.e., 2023-01-01) = 7,440,000,000 EUR

**Step 2: Estimate FFO**

FFO (Funds From Operations) is typically calculated as net income plus depreciation and amortization, plus other non-cash charges, minus gains on sales of assets. There are different definitions, but a common approach is:

FFO ≈ Net Income + Depreciation & Amortization + Other non-cash items

Let me use the cash flow statement to derive FFO. Looking at the cash flow data for the period 2022-01-01 to 2023-01-01:

"Cash Flow After Cost Of Net Debt Interest Expense On Lease Obligations And Income Taxes Paid" = 3,324,000,000 EUR

This is essentially cash flow from operations before working capital changes but after interest and taxes. Let me reconstruct:

Starting from Profit/Loss = 1,131M

Add back:
- Adjustments for undistributed profits of equity method investments: -92M (this means subtract 92M since it's negative, meaning equity method contributed less than distributed)
- Wait, let me reconsider.

A simpler approach: FFO is often defined as operating cash flow before working capital changes.

From the cash flow statement:
- Cash flow after cost of net debt, interest on lease obligations, and income taxes paid = 3,324M
- Add back: Cost of net debt and interest on lease obligations = 260M
- Add back: Income taxes paid = 518M
- This gives cash flow before interest and taxes and before WC changes = 3,324 + 260 + 518 = 4,102M

But FFO typically is after interest and taxes but before working capital changes. So:

FFO = Cash flow after cost of net debt, interest on lease obligations, and income taxes paid = 3,324M

This represents the operating cash flow before working capital changes but after interest and tax payments.

Alternatively, some definitions include:
FFO = Operating cash flow before working capital = Cash flows from operating activities - working capital changes
= 2,978 - (-606) = 2,978 + 606 = 3,584M

Wait, the working capital change of 606M was a decrease (use of cash), so:
Cash flows from operating activities = Cash flow before WC + WC change
2,978 = 3,584 + (-606)
2,978 = 3,584 - 606 = 2,978 ✓

So FFO before WC changes = 3,584M

But let me reconsider. The "Cash Flow After Cost Of Net Debt Interest Expense On Lease Obligations And Income Taxes Paid" at 3,324M plus "Adjustments For Cost Of Net Debt And Interest Expense On Lease Obligations" of 260M = 3,584M, then minus "Increase Decrease In Working Capital" of 606M (which represents a cash outflow/use) = 3,584 - 606 = 2,978M = Operating cash flows. This checks out.

So FFO (before working capital changes, after interest and taxes) = 3,324M

**Step 3: Calculate ratio**

FFO / Net Debt = 3,324 / 7,440 = 0.4468

Approximately 0.447 or ~44.7%

<answer>0.447</answer>