You have to work on two parallel systems of:
1. Performance Assessment
2. Salary and Rewards
And then link them together.
Performance Assessment
In Performance Assessment, you need to rate people based on performance and establish the distribution.
For example, if your performance rating system has a 5-point scale (for the sake of example, let us assume that 1 is the worst performer and 5 is the best performer), then establish how many get ratings of 1, 2, 3, 4, and 5.
Once you do that, work on the Salary and Rewards systems starts.
Salary and Rewards
Get clarity from your seniors on how much rupee budget you have to give as increments. In other words, if your existing payroll cost is a hundred, then what is your budget to take it up to? 115, 118, or 120? In percentage terms, it would mean 15%, 18%, or 20%.
Suppose they say that you have a 15% budget on existing salaries, then prepare a plan on the distribution based on the actual dispersion.
Do some mathematics to establish how much increment employees with rating 1 would get and likewise. In this example, employees with rating 5 should get the highest increment and 1 gets the least.
In Salary and Rewards, we also look at inflation percentage and decide whether inflation becomes your minimum increment point.
Hopefully, this would have helped you. If you need more details, please drop in an email to [Email Removed For Privacy Reasons]. I would be happy to help!
All the best!
Regards,
Rajesh