What does it mean to tax the difference in taxable services after the reform of the camp?

Taxing the difference of taxable services after changing business tax to value-added tax in pilot areas means that taxpayers provide taxable services after changing business tax to value-added tax, and in accordance with the national policies and regulations on taxation of business tax difference, the tax-free balance after deducting the prescribed project price paid to taxpayers within the prescribed scope is used as sales (hereinafter referred to as taxable sales).