There doesn’t have to be a statute that says “ you can’t raise your price more than x %” . That’s what common law means. The judge determines whether the contr

There doesn’t have to be a statute that says “ you can’t raise your price more than x %” . That’s what common law means. The judge determines whether the contract between them was upheld in good faith. Now if the contract says “every 5 years we may raise the price by 10000% “, there is good faith between the two parties. If the contract says “every year we may increase the price by a reasonable amount to cover increasing operating cost” – the judge decides what a reasonable amount is. That’s what common law means. The statutes are not the law. Judgements are the law.