Recently, the value of the Argentinian Peso relative to other currencies has been somewhat erratic and overall dropped by 25-30% (see chart vs US Dollars and set the range to August - September 2018).
Now, I'm currently in Peru (specifically, Lima) and planning to go to Cordoba, Argentina, within the next couple of days. I have some Peruvian Soles (which I would like to get rid of) and some US Dollars.
My question is: Is it better for me, in terms of the exchange rates, to buy Pesos here in Peru, or to do so in Argentina?