What factor in a workers' compensation premium reflects the insured's own particular loss history?

Loss cost refers to the expenses associated with claims and losses experienced by all insureds within a given classification. It is an average figure used to help set premiums but does not account for an individual company's specific loss history. Therefore, while it influences premiums, it does not directly reflect an insured's unique loss experience.

Guaranteed cost is a type of insurance policy where the premium is fixed and does not fluctuate based on the insured's loss history. This means that regardless of how many or how severe the claims are, the premium remains the same throughout the policy term. As such, guaranteed cost does not adjust for individual loss experiences, making it irrelevant to the question.

Classification refers to the categorization of businesses based on the types of risks they present. While classifications help in determining base rates for premiums, they do not account for an individual company's specific loss history. Thus, classification is more about industry risk profiles than about the insured's own claims experience.