Agreed. Or better still quote a reliable source.
According to the Rigid Inflatable Boat National Educational Taskforce (otherwise known as R.I.B.N.E.T) there were 345,625 Semi Inflatable boats sold in the UK last year.
After a customer satisfaction survey was produced, around 68% of those bought would be interested by the idea of them being transported by dolly wheels, if such a product was ever even available.
That makes a potential target Market of 235,025, each willing to spend £25 on said product.
A potential yearly turnover of £575,625 should go down well with the teacher. If not change them to suit you.
Peter ~ Boatsandoutboards4sale ~ firstname.lastname@example.org
~ 07930 421007