| Cost | Amount | Currency | When paid | In £ | Confidence | Note | ||
|---|---|---|---|---|---|---|---|---|
| Subtotal | ||||||||
| Contingency % | ||||||||
The course fee is the dominant exposure and it's fixed in US dollars, so GBP/USD drives the bill. Over the last 90 days the pair has run between about 1.32 and 1.36. Buying the dollars in tranches as she saves spreads the risk; leaving it all to January is a bet on one morning's rate.