Essentially, for every penny the Euro goes down in value (or the US dollar goes up in value) you save $10 per 1,000 Euros that you spend. If I remember correctly, when we started our Camino about the beginning of September 2017, the Euro was somewhere about $1.19. I believe that I spent somewhere in the range of 1,500 Euros while on the Camino, not counting the plane ticket. So at this value I would have saved about $102. I figure that my total Camino, including absolutely everything (gear, shoes, clothing, plane ticket, accommodations, travel insurance, etc.) cost me about $4,100 for 49 days total trip for the French Way and to Finnesterre (including flights). A difference of $102 would not have changed my decision in any way, shape, or form. I want to go again! It would be cheaper since I already have much of the gear (I do need new shoes though).