Dear Vandana,
I won't dwell here on the base minimum salary that you should pay to your employees based on market conditions and inflation.
Now, on the subject of Variable pay, many methods are followed. I will give a few examples:
1. Lump sum
This is a very traditional method that was originally used for very senior executives as a commission but has now been extended to all categories. It is always linked with profit, and the percentage is decided based on the profit. For example, if your profit target is 1 crore and you achieve 75 lakhs, then the commission or bonus payable is only 75% of the agreed amount.
Many organizations used to state that executives are eligible for 100% of their basic salary as a profit-sharing bonus or commission based on the appraisal. They would then decide at the end of the year, based on the profit, the percentage to be paid. In any case, it won't exceed 100% of the agreed amount. This is a very old conventional but still a simple method.
2. Lump sum on appraisal
Organizations revise salaries every year based on market and inflation and cannot differentiate between employees. So, they conduct this exercise annually. They also appraise employees every year and categorically decide the lump sum payable for different ratings. Here is an example:
Grade 1
Rating A - Rs 10,000 as lump sum
Rating B - Rs 7,500 as lump sum
Rating C - Rs 5,000 as lump sum
Grade 2
Rating A - Rs 7,500 as lump sum
Rating B - Rs 4,000 as lump sum
Rating C - Rs 2,000 as lump sum
This is just an illustration and the amounts go into lakhs.
3. Monthly Variable
Some organizations, mostly IT companies, based on ratings, decide the monthly variable amount payable for different levels. Sometimes the rule is so flexible that they decide for the individual as well. This is paid as variable pay every month with the condition that this amount will be withdrawn at the end of the year. This is similar to the lump sum method, but the financial burden is spread over a year. With attrition so high in the industry, they prefer to make payments as long as the employee is with the organization.
4. Incentives
Mostly salespeople are given incentives based on targets.
This is a complex subject, and I hope this information has given you some insight.