A forecaster uses the following data for a country's tourism services:
| Tourism services flow | Current year | Forecast change next year |
|---|---|---|
| Spending by overseas visitors in the country | £60 billion | 10% increase |
| Spending by the country's residents while abroad | £80 billion | 5% decrease |
What is the forecast improvement in the country's tourism services balance?
It improves by £4 billion
It improves by £6 billion
It improves by £10 billion
It improves by £2 billion