Julia brings home $1 comma 6001,600 per month after taxes. julia's rent is $350350 per month, her utilities are $100100 per month, and her car payment is $250250 per month. julia is currently paying $200200 per month to her orthodontist for her braces. julia's groceries cost $5050 per week and she estimates her other expenses to be $150150 per month. as a result, she has $350350 left each month to put toward savings to reach her financial goals. julia is considering trading in her car for a new one. her new car payment will be $325325 per month, and her insurance cost will increase by $6060 per month. julia determines that her other car-related expenses (gas, oil) will stay about the same. what is the opportunity cost if julia purchases the new car?