Delivery / Collection charge per mile travelled £0.50 + VAT = £0.60
 
Calculation example. 
Customer's site 10 miles from Wymondham Hire period 1 week

- Trailer delivered to site at start of week (20 miles travelled 2x10)

- Trailer collected from site at end of week (20 miles travelled 2x10)

- Collection & Delivery charge - 40 miles times £0.60/mile = £24.00 inc VAT.