Jan went grocery shopping and only bought items which had been marked down. The items she bought, along with their prices, can be seen below. Item Final Price Markdown Chicken $8.47 15% Milk $2.16 20% Onions $0.89 10% Potato chips $1.45 12% Oranges $1.36 25% Flour $4.39 18% What would be the total of Jan's grocery bill if she purchased all of the items before they were marked down?