The question asks about the amount of payments AFTER the copayment from the patient has already been collected. Therefore the basis of our calculations should be the value of total charges subtracted with the copayment:
Total charges after copayment = $785 - $20
Total charges after copayment = $765
Since the insurance would be paying 70 percent of the total charges, therefore the amount to expect from the payer is:
Amount from the payer = 0.70 * $765
Amount from the payer = $535.50
Meanwhile, the policy requires coinsurance from the patient and he is to pay 30%, therefore the patient’s bill is:
Patient’s bill = 0.30 * $765
Patient’s bill = $229.50