Each seretide inhaler lasts for one month, in fact it has a counter where you can keep track of how many puffs you have used, when it reaches zero it means you are finished. The treatment consists of using 2 puffs every 12 hours. The cost of this medicine is $67.52 (at the local currency exchange rate to dollars) for one year I need 12 inhalers, that would be a total of $810.24

Oh you're right, I didn't set a goal, I'll correct it. Thank you very much for the correction.