The price of the car is 12 465 dollars + 5.65% sales tax
=> 5.65 = 0.0565
=> 12 465 * 0.0565 = 702.27 dollars is the added amount to the price
=> 12 465 + 702.27 = 13 169.27 dollars is the new price
you paid 1300
=> 13 169.27 - 1300 = 11 869.27 dollars is your due