Calculate rates based on range of miles

I need to calculate a rate for each truckload (trucking company) given the number of miles on that individual load (miles are predetermined).

Specifically, for miles = zero to 200 make the price $400, for miles = 201 to 250 make the price $500, and for miles greater than 250 make the price miles times $2.00 per mile.

If the miles are in A1

=IF(A1<=200,400,MAX(500,A1*2))

Works perfectly. Thanks a million!

Re your PM.....if you want another category try

=IF(A1<=200,400,IF(A1<=225,450,IF(A1<=250,500,A1*2)))

that assumes that 201-225 miles has a cost of $450. Change as required