How do you compute composite rated commercial auto at time of audit?

To compute the composite rated commercial auto at the time of an audit, you first gather the total number of vehicles and their respective classifications. Then, calculate the total exposure by multiplying the number of vehicles in each class by their corresponding rates, adjusting for any changes in operations or vehicle usage. Finally, sum these amounts to determine the overall composite rate for the audit period, ensuring all relevant discounts or surcharges are applied as per the policy terms.