| notes | 2018 | 2017 |
Gross rental income | 5 | 281 | 247 |
Service charges income | 6 | 10 | 10 |
Revenues | | 291 | 257 |
| | | |
Property operating expenses (excluding service charges) | 7 | (65) | (57) |
Service charges | 6 | (16) | (16) |
Net rental income | | 210 | 184 |
| | | |
Result on property sales | 8 | 44 | 13 |
Management expenses | 9 | (18) | (16) |
Financial results | 10 | (29) | (43) |
Realised result before tax | | 207 | 138 |
| | | |
Unrealised result | 11 | 825 | 544 |
| | | |
Result before tax | | 1,032 | 682 |
| | | |
Tax | 12 | - | - |
Result after tax (attributable to equity holders of the parent/participants) | | 1,032 | 682 |
| | | |
Other comprehensive income that will be reclassified subsequently to profit or loss | | | |
- Unwind transaction derivatives | | - | 12 |
- Positive revaluation derivatives | | - | 6 |
- Revaluation of PPE | | 2 | 1 |
Other comprehensive income, net of tax | 13 | 2 | 19 |
| | | |
Total comprehensive income (attributable to equity holders of the parent) | | 1,034 | 701 |
| | | |
Earnings per participation right in € | | | |
Basic and diluted earnings, on result after tax | 20 | 32.20 | 24.87 |
| | | |
Comprehensive income per participation right in € | | | |
Basic and diluted earnings, on total comprehensive income | | 32.27 | 25.58 |