
Answer:
2.30% Â appreciated
Explanation:
The computation of the change in dollar is shown below;
But before that we have to find out the base currency which is
As we know that
Old rate = $0.8909 / Euro
And New rate = $0.8709 / Euro
Therefore changing the base currency to Dollar, we get
Old rate = (1 ÷ 0.8909)
       = Euro 1.122460 / $
New rate = (1 ÷ 0.8709)
        = Euro 1.148237 / $
The more number of Euors could be bought when there is a change in rates together the dollar is also used. So dollar has appreciated.
Now the change in dollar is
Change in dollar = (New rate ÷ Old rate) -1
              = (1.148237 ÷  1.122460) - 1
              = 1.0229647 - 1
              = 0.0229647
              = 2.29647% or 2.30%