The sales tax rate in Bergville is 6\%6%. During a sale at the Bergville Coat Closet, the price of a coat is discounted 20\ % from its 90.0090.00 price. Two clerks, Jack and Jill, calculate the bill independently. Jack rings up 90.0090.00 and adds 6\%6% sales tax, then subtracts 20\ % from this total. Jill rings up 90.0090.00, subtracts 20\ % of the price, then adds 6\%6% of the discounted price for sales tax. What is Jack's total minus Jill's total