Answer: Deciding
Explanation:
The normative decision model is one of the type of theory that helps in explain the various types of optimal decisions that specifically helps calculating the accuracy of the given decision outcome.
It basically provide the various types of prescriptive function and also the various types of rules that helps in maximizing the total outcome of the decision making concept.
According to the given question, the Kevin is basically demonstrating the deciding process based on the normative decision model as he announces that the 25% of the employees salaries is basically depending upon their specific performance in an organization.
Therefore, Deciding is the correct answer.