A local merchant offers an 11% discount if a customer mentions seeing the discount offer on the merchant's website. The merchant also offers an additional 5% if the customer pays cash for the purchase amount. A customer makes a $500 purchase with cash and asks for both discounts. The checkout clerk mistakenly applies a 16% discount on the purchase. How much did the merchant lose from the clerk's mistake? (Express your answer as a decimal a.bc in dollars and cents, but do NOT include a $ in your answer.)