A retail store bought 120 items and the unit price was x. The first 100 items were sold at the price of y, and the selling price of the last 20 items was 20% more than the cost of each item. What's the profit from selling these 120 goods?
1: The selling price of the first 100 pieces was 30% more than the cost of each item.
2: The selling price of the first 100 pieces was 20 dollars more than that of the last 20 pieces.