Under CPCU 500 coverage analysis, Business Income and Extra Expense coverage is subject to both a policy limit and the coinsurance condition. Coinsurance is designed to encourage the insured to carry an amount of insurance that is proportional to the exposure, measured as the expected annual business income value. Here, Ann's annual business income value is given as net income plus operating expenses of $50,000. With a 70 percent coinsurance requirement, the minimum required limit is $50,000 × 0.70 = $35,000.
Ann carried only $30,000, so she did not meet coinsurance. The coinsurance fraction is the limit carried divided by the limit required: $30,000 ÷ $35,000 = 0.857142857. The covered loss consists of two parts during the one-month restoration period: $2,000 of business income loss plus $800 of extra expense, for a total of $2,800. Under the Business Income and Extra Expense form, the coinsurance penalty applies to the amount payable for the covered business income loss and necessary extra expense, subject to the policy limit.
Applying the coinsurance fraction: $2,800 × 0.857142857 = $2,400. This amount is below the $30,000 policy limit, so the insurer pays $2,400.