cchang

the two are different sized economies
So for the first number 28-30 for country 1 while 350-386 for Country 2 are not comparable.
28-30 is a 7.14% change, 350-386 is a 10.28% change.
However due to the different sizes - they need to be first common sized.
This is done by multiplying 7.14% by 30/52 to get 4.1%, and 10.28% by 386/665 to get 5.96%(rounded to 6%)
and then the comparable numbers are compared.
which leads to Croatia (2nd country having the higher growth rate).