Get it right.
I did not give Nottinghams stats, but the combined total for EMA's nearest cities. But if you want it broken down here it is Nottingham 267k, Derby 222k and Leicester 280k.
Back to the airport car park charges. The charges are those PUBLISHED BY BOTH airports and publically available to anyone who cares to look for them. Also there are now alternatives to the official car parks at Liverpool now as well. I think you will find Liverpool, has and always will have, lower car park charges than Manchester. It is a policy decision taken by the airports managers and owners.