How much does an MOT cost the station?

[m4tt]

Just wondering what kind of margins these places actually make? As some places charge ~£30 then there is ones that go by the book and charge £54.

If its properly classified info, feel free to PM me.

[m4tt]

So in summary, buying an existing MOT station, aslong as you can continue the licence (or whatever it maybe called) offers a pretty damn good profit margin?