If i were to visit Croatia or Greece how much would each cost to visit for a week?

So if i wanted to visit Split, Croatia for a week in a decent hotel and good food along with transportation how much would it cost by the day, same thing if i were to visit athens, greece for 1 week how much would hotel, food, and transportation cost? Try to give me estimates on prices of food, buses, museums etc. Im mainly curious if these two countries are "dirt cheap" to visit from what i heard. Also just say what would the average id have to spend per day (including hotels, food, transportation etc.)