Gratuity calculation

Gratuity is dependent upon the total number of years served in the company and the last drawn salary.

If A is (number of years of service in a company) + B is (last drawn salary) {Basic Salary+ Dearness Allowance}

Then, Gratuity = A*B*15/26 ; 15 being wages for 15 days and 26 being the days of the month.

Good explanation

Thank you