Cost of a car is $$30,000.2$ plans are available for you.

$10\%$ discount on sales price of the car with $60$ monthly

payments financed at $9\%$ interest$/$year$.$

No discount on sales price of the car with $60$ monthly

payments financed at $2\%$ interest$/$year$.$

If you believe your annual cost of capital is $9\%$ which

payment plan is better?