Final answer:
A household with a credit score of 580 will pay $74 more compared to a household with a credit score of 750.
Step-by-step explanation:
To calculate how much more a household with a credit score of 580 will pay compared to a household with a credit score of 750, we need to compare the total amount paid by each household for the given principal balance. According to the information provided, the total amount paid for a credit score of 800-850 is $2,709, while the total amount paid for a credit score of 740-799 is $2,635. The difference between these two amounts is $2,709 - $2,635 = $74. Therefore, a household with a credit score of 580 will pay $74 more compared to a household with a credit score of 750.