Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Name | City | Years as tallest | Metres | Feet | Floors |
| --- | --- | --- | --- | --- | --- |
| The Shard | London | 2011–present | 306.0 | 1004.0 | 87.0 |
| Commerzbank Tower | Frankfurt | 1997–2011 | 259.0 | 850.0 | 56.0 |
| Messeturm | Frankfurt | 1990–1997 | 257.0 | 843.0 | 55.0 |
| Tour Montparnasse | Paris | 1972–1990 | 210.0 | 689.0 | 59.0 |
| Tour du Midi/Zuidertoren | Brussels | 1966–1972 | 150.0 | 492.0 | 38.0 |
| Pirelli Tower | Milan | 1958–1966 | 127.0 | 417.0 | 32.0 |
| Torre Breda | Milan | 1957–1958 | 117.0 | 384.0 | 30.0 |
Question:
How many metres tall is the building that is larger than 850 feet tall?
Answer:
306.0