The following table shows the number of bottles of 6 different colours sold by a shop in a month.
| Colour | Bottles |
| C1 | 46 |
| C2 | 34 |
| C3 | 50 |
| C4 | 42 |
| C5 | 28 |
| C6 | 40 |
The total number of bottles of C4 and CS sold in that month is approximately what percentage of the total number of bottles of all the 6 colours taken together sold in that month?