| Channel | £000 |
|---|---|
| Digital | 60 |
| TV | 130 |
| 110 | |
| Radio | 70 |
| Total | 370 |
Share = part ÷ total × 100, using the overall total as the denominator. The correct answer is 29.7%. Traps to avoid: 18.9% comes from the "wrong slice" error; 14.9% comes from the "wrong total" error; 16.2% comes from the "wrong slice" error; 42.3% comes from the "divided by others" error.