Differential proportional tax rate refers to the tax rate at which two or more tax rates are set for a tax, and different taxpayers calculate the amount of tax payable in different proportions
Since January 1, 2009, China has implemented the product oil tax reform, increasing the unit tax of gasoline consumption tax levied within the product oil price by 0.8 yuan per liter, that is, from 0.2 yuan per liter to 1 yuan
 Progressive tax rate refers to the tax rate that increases step by step with the amount of tax objects from low to high