<image>A farmer brings several kilograms of home-grown potatoes to the city for sale. For convenience, he brings some change in advance. After selling some at the market price and then reducing the price, the relationship between the kilograms of potatoes sold and the amount of money he holds (including the change) is shown in the graph. Based on the graph, answer the following questions:

(1) How much change did the farmer bring?
(2) What was the price per kilogram of potatoes before the price reduction?
(3) After reducing the price, he sold the remaining potatoes at 0.4 yuan per kilogram, and at this point, he has 26 yuan (including the initial change). How many kilograms of potatoes did he bring in total?

