98: 0.9 yuan 1 kg.

2008: 2. 1 yuan 1 kg.

2. Vegetables: 78 years: 50 cents 1 kg on average.

1998 average 0.4 yuan 1 kg.

2008: average 1.5 yuan 1 kg.

3. Pork: 78 years: 0.82 yuan 1 kg.

In 1998: 4 to 5 yuan 1 kg.

2008: average 14 yuan 1 kg.

(All above are subject to local prices) 1. The factors that affect the price change of rice are mainly the season and the production situation in the main rice producing areas. If drought and flood disasters lead to reduced grain production, the price of rice will rise. 2. The main factors affecting the price change of a vegetable are the planting area and yield of the vegetable. Of course, if vegetables are reduced or never harvested due to natural disasters, the price of vegetables will fluctuate greatly. 3. The main factors that affect the change of pork price are the slaughter of commercial pigs and the price of pig feed, which is closely related to the price of some crops, so there are many factors that affect the change of pork price. It should be noted that sometimes some unfounded negative news will lead to the rise or fall of a commodity price. With the gradual strengthening of world economic integration, the price of a commodity in each country is not only caused by the output of this commodity in its own country, but also related to the cultivation and output of this commodity in other countries. Therefore, there are many factors that affect the prices of these commodities. I won't list them all here. -Wanpu Commercial Finance