Based on the financial facts from Fortum Oyj's 2022 annual report and the provided market data, the entity should be advised to target **0%** hybrid capital. 

**Reasoning:**
1. **Strong Leverage and Credit Metrics:** After the divestment and deconsolidation of Uniper (which caused the massive discontinued operations loss), Fortum's continuing operations exhibit very strong credit metrics. The company generated a "Comparable EBITDA" of €2.43 billion. With total financial liabilities of €7.78 billion ("Other Noncurrent Financial Liabilities" of €3.65 billion + "Other Current Financial Liabilities" of €4.12 billion) and "Liquid Funds" of €3.91 billion, their net debt stands at approximately €3.87 billion. This yields a very healthy Net Debt / EBITDA ratio of around 1.6x. 
2. **Robust Cash Flow and Low Refinancing Needs:** The company generated operating cash flows before working capital changes of €2.32 billion. Against relatively low capital expenditure ("Purchase Of Property Plant And Equipment..." of €534 million) and a proposed dividend distribution of €817 million, the firm generates sizable free cash flow. Additionally, in 2022, Fortum demonstrated major deleveraging by repaying €5.88 billion in non-current borrowings, indicating no pressing refinancing needs.
3. **No Extraordinary Capex or M&A Requirements:** Fortum's low capital expenditure intensity in 2022 reflects an absence of a transformational capex program or large acquisition pipeline that would necessitate capital structure optimization via hybrids.
4. **Rising Cost of Hybrid Debt:** Throughout 2022, macroeconomic tightening led to significantly higher funding costs. The 5Y/7Y/10Y swap curves turned from negative to near 2.0%, and the subordinated-senior delta for non-financial IG bonds skyrocketed to 2.295%. Issuing a hybrid bond in this environment would be highly punitive and would materially increase Fortum's overall cost of debt without yielding substantial rating benefits, considering their already robust standalone balance sheet.
5. **No Existing Hybrids:** There are no current hybrid bonds embedded in the capital structure to replace or manage. 

Consequently, Fortum Oyj has zero rationale to introduce expensive hybrid capital, aligning perfectly with the 0% criteria.

<answer>0%</answer>