I think the economic and political stability in countries is the main factor that makes the difference between the value of the two currencies. I don't know what people think? moviedle

One of the major reasons for the difference in value of currency between two different countries is that one country may have a higher inflation rate than the other. This means that the currency in one country will be worth less as time goes on as opposed to another.

In order to understand why currencies move against each other and how we need to understand how currencies are actually valued but it takes time to cover this topic, if you're interested you can read about currency value.