Super sports is offering a 20% discount on each pair of shoes.which originally priced $72.50. A 6.5% sales tax will be applied to the discounted price. The same shoes are also available on double dribble’s web site for $54.75. A 9% processing fee will be applied to the cost of the shoes, plus a shipping fee of $5.99 for each pair. What is the difference in the total costs of the 12 pairs of shoes between the two stores?