A survey was conducted among students regarding their preference for science subjects. The table shows some of the results. What percentage of those who do not prefer Chemistry are female?
| Prefer Chemistry | Don't Prefer Chemistry | Total | |
|---|---|---|---|
| Males | ? | 50 | ? |
| Females | 130 | ? | 180 |
| Total | ? | 100 | 400 |
30
40
50
60
70
