How much is the difference between Guangzhou social security and Foshan social security?

Two percent of the salary. According to official website of Guangdong Social Security, Foshan social security payment standard is charged according to the proportion of total wages, which does not exceed 20% of the base, while Guangzhou social security payment standard is charged according to the proportion of total wages and the per capita disposable income of urban residents, which does not exceed 22% of the base, so the difference between them is equal to 2%.