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 | Innings | Runs Scored | Balls Faced | Average | S.R. |
| --- | --- | --- | --- | --- | --- |
| Upul Tharanga | 1.0 | 10.0 | 18.0 | 10.0 | 55.56 |
| Sanath Jayasuriya | 7.0 | 103.0 | 116.0 | 14.71 | 88.79 |
| Kumar Sangakkara (wk) | 7.0 | 326.0 | 448.0 | 46.57 | 72.77 |
| Mahela Jayawardene (c) | 7.0 | 214.0 | 297.0 | 35.67 | 72.05 |
| Chamara Silva | 6.0 | 80.0 | 171.0 | 16.0 | 46.78 |
| Tillakaratne Dilshan | 7.0 | 172.0 | 182.0 | 34.4 | 94.51 |
| Chamara Kapugedera | 5.0 | 86.0 | 176.0 | 17.2 | 48.86 |
| Chaminda Vaas | 4.0 | 19.0 | 39.0 | 6.33 | 48.72 |
| Lasith Malinga | 4.0 | 19.0 | 65.0 | 4.75 | 29.23 |
| Muttiah Muralitharan | 4.0 | 25.0 | 43.0 | 8.33 | 58.14 |
| Ishara Amerasinghe | 3.0 | 5.0 | 7.0 | 5.0 | 71.43 |
| Farveez Maharoof | 2.0 | 10.0 | 20.0 | 10.0 | 50.0 |
| Nuwan Kulasekara | 2.0 | 14.0 | 29.0 | 7.0 | 48.28 |
| Dilruwan Perera | 3.0 | 14.0 | 36.0 | 4.67 | 38.89 |
Question:
What is the number of averages having a balls faced over 297 and more than 7 innings?
Answer:
0.0