How to calculate the freight of the truck?

Hello, Express Didi is a freight platform in the same city, which mainly matches the supply of vans, minivans, medium-sized trucks and flatbeds. Truck drivers can directly take orders to pull goods through the platform. Compared with the traditional way of finding goods, it saves the time of drivers and shippers and greatly improves the freight efficiency. At present, there are nearly 70 cities in major cities in China, and the charge prices of each city are different. The specific price is calculated according to the city, model and distance. For example, Fuzhou minibuses are all in 32 yuan within 5 kilometers, and the excess part is in 3 yuan per kilometer; Within 5 kilometers of the big van, 52 yuan, exceeding the part of 4 yuan per kilometer; Small trucks are all in 60 yuan within 5 kilometers, and the excess part is in 4 yuan every kilometer; Medium-sized trucks within 5 km all 100 yuan, beyond the part of 5 yuan per kilometer; The trucks within 5km are all 136 yuan, and the excess part is 5 yuan per kilometer.