In enterprises, quarterly expressions are also commonly used to summarize the company's performance: the first quarter: Q 1(quarter 1st), the second quarter: Q2(quarter 2), the third quarter: Q3(quarter 3) and the fourth quarter: Q4(quarter 4). Quarter, which usually appears in the company's annual report, analyzes and reports the company's operating data on a quarterly basis, showing the changes in each stage. Commonly used are quarterly financial reports, quarterly performance, quarterly sales, quarterly wages, quarterly allowances and other scenarios.