Company: EFR
Filing Date: 2025-03-31
Form Type: 424B3
Source: 0001076598-25-000009
Chunk: 4

Company: Eaton Vance Senior Floating-Rate Trust
Filing Date: 2025-03-31
Form: 424B3
Chunk 4
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 at      
 95% of the per share liquidation preference. Absent this transaction, the total return based on net asset value would have been 10.95%. |

| (13) | Excludes the effect of custody fee credits, if any, of less than 0.005%. Effective September 1, 2015, custody fee credits, which were 
 earned on cash deposit balances, were discontinued by the custodian.                                                                  |

| † | Ratios based on net assets applicable to common shares plus preferred shares and borrowings are presented below. Ratios do not reflect 
 the effect of dividend payments to preferred shareholders and exclude the effect of custody fee credits, if any.                       |

|                                      |     | Year Ended October 31, | 2024 |   |     |     | 2023 |   |     |     | 2022 |   |     |     | 2021 |   |     |     | 2020 |   |     |     | 2019 |   |     |     | 2018 |   |     |     | 2017 |   |     |     | 2016 |   |     |     | 2015 |   |
|:-------------------------------------|:----|:-----------------------|-----:|:--|:----|:----|-----:|:--|:----|:----|-----:|:--|:----|:----|-----:|:--|:----|:----|-----:|:--|:----|:----|-----:|:--|:----|:----|-----:|:--|:----|:----|-----:|:--|:----|:----|-----:|:--|:----|:----|-----:|:--|
| Expenses excluding interest and fees |     |                        | 0.86 | % |     |     | 0.89 | % |     |     | 0.88 | % |     |     | 0.87 | % |     |     | 0.84 | % |     |     | 0.82 | % |     |     | 0.85 | % |     |     | 0.87 | % |     |     | 0.88 | % |     |     | 0.86 | % |
| Interest and fee expense             |     |                        | 1.39 | % |