ArcelorMittal Dofasco can buy iron ore pellets from Minnesota at US$133 per short ton (2000 pounds) or

Question:

ArcelorMittal Dofasco can buy iron ore pellets from Minnesota at US$133 per short ton (2000 pounds) or from Labrador at C$165 per metric tonne (1000 kg). Which source is more expensive? How much more expensive is it in C$ per metric tonne? (1 pound = 0.4536 kg)