Every contract, combination in the form of trust or otherwise, or conspiracy, in restraint of trade or commerce is illegal. Every person who makes any contract or engages in any combination or conspiracy in restraint of trade or commerce is guilty of a Class H felony, except that, notwithstanding the maximum fine specified in s. 939.50 (3) (h), the person may be fined not more than $100,000 if a corporation, or, if any other person, may be fined not more than $50,000.