In addition to corporate purchases, the average price of buying a new car that has just left the factory has increased by 30% in the past five years. In the same period, the proportion of the average family budget for the purchase of cars has not changed. Therefore, the average family budget must have increased by 30% in the past five years.
cussion?
In the past 5 years, the average household expenditure on car-related expenses has not changed.