I need to estimate the FFO / Net Debt ratio for 2022.

**Step 1: Calculate FFO (Funds From Operations)**

FFO is typically calculated as Net Income + Depreciation & Amortization + other non-cash items. A common approach is:

FFO = Net Income + Depreciation & Amortization

From the data for 2022 (period 2022-01-01 to 2023-01-01):
- Profit Loss (Net Income): 311,160,000 EUR
- Adjustments For Depreciation And Amortisation Expense: 594,636,000 EUR

So a basic FFO = 311,160,000 + 594,636,000 = 905,796,000 EUR

However, a more refined FFO might also add back impairment losses and other non-cash items. Looking at the cash flow statement, the "Cash Flows From Used In Operations Before Changes In Working Capital" is 1,062,464,000 EUR, which already includes adjustments for depreciation, impairments, provisions, employee benefit changes, finance costs, and taxes paid. This is close to an FFO measure but includes tax payments and finance cost adjustments.

A common FFO calculation: Net Income + D&A + Impairment losses (non-cash)
= 311,160,000 + 594,636,000 + 67,680,000 = 973,476,000 EUR

But let me use the simpler and more standard approach: FFO ≈ Net Income + D&A = 905,796,000 EUR

**Step 2: Calculate Net Debt**

Net Debt = Total Financial Debt - Cash and Cash Equivalents

From the balance sheet at 2023-01-01 (end of 2022):
- Other Noncurrent Financial Liabilities: 4,722,263,000 EUR
- Other Current Financial Liabilities: 619,418,000 EUR
- Total Financial Debt = 4,722,263,000 + 619,418,000 = 5,341,681,000 EUR

Cash and equivalents: 559,908,000 EUR
Current financial assets: 342,085,000 EUR (sometimes included)

Net Debt = 5,341,681,000 - 559,908,000 = 4,781,773,000 EUR

If we include current financial assets:
Net Debt = 5,341,681,000 - 559,908,000 - 342,085,000 = 4,439,688,000 EUR

Let me use the standard approach (only cash):
Net Debt = 4,781,773,000 EUR

**Step 3: Calculate FFO / Net Debt**

Using basic FFO:
FFO / Net Debt = 905,796,000 / 4,781,773,000 = 0.1894 ≈ 0.19

Using the more comprehensive FFO (with impairments):
973,476,000 / 4,781,773,000 = 0.2036 ≈ 0.20

Let me reconsider - a standard rating agency FFO typically starts from cash flow from operations before working capital changes minus interest and taxes, or alternatively:

FFO = Cash flow from operations + changes in working capital (to remove WC effects)
= 726,703,000 + 125,490,000 = 852,193,000 EUR

Or simply use operating cash flow:
726,703,000 / 4,781,773,000 = 0.152

The most standard approach for FFO/Net Debt used by analysts:
FFO = Net Income + D&A = 905,796,000

FFO / Net Debt = 905,796,000 / 4,781,773,000 ≈ 0.189

<answer>0.19</answer>