The gross profit rate of the industry, namely the cost profit rate, is designated by the tax authorities according to the actual operating conditions of the industries under investigation, and is mainly used to calculate the income tax profits of taxpayers with imperfect accounting accounts. The gross profit margin of the industry can be found on your local tax website. As for the tax rate, there is no specific provision, because the taxpayer's business scale, business location and other factors are different, so the tax burden is also different. Generally speaking, the higher the profit, the higher the tax burden.