Answer:
$823.20
Explanation:
He has to pay $68.60 for each installment. As he agreed to pay 12 installments, we have to multiply $68.60 by 12.
That's 12 * $68.60 = $823.20.
So, the total amount of installment payments is the amount he pays for the 12 installments he agreed, that's $823.20.