I joined a proprietor-based company as an HR executive, where I found that employees had different basic salaries with no uniformity. For example, it could be 20% for some and 30% for others. It may vary from person to person, such as 15.75% or 14%. This means that salaries may be represented as Rs 300, Rs 1000, or Rs 1500. Now, they have asked me to design the appointment letter considering that basic amount and also design the gross salary of new employees. However, the 12% on the basic salary should not exceed Rs 150. In this situation, how do I determine the minimum percentage to consider when calculating the basic salary, given that one person's salary is Rs 7500 and another's is Rs 14000 per month? I am confused about what I should do.