How long on average did a unit of inventory sit on the shelf before it was sold? (?

You are the cfo of a u.s. firm whose wholly owned subsidiary in mexico manufactures component parts for your u.s. assembly operations. the subsidiary has been financed by bank borrowings in the united states. one of your analysts told you that the mexican peso is expected to depreciate by 30 percent against the dollar on the foreign exchange markets over the next year. what actions, if any, should you take