The salesperson, Xiao Li, was careless and mistakenly sold the pens with a unit price of 13.2 yuan as 12.3 yuan, and sold a total of 17 pens. Please do the math for Xiao Li, how much will she pay in total?
售货员小李粗心大意，误把单价为13.2元的钢笔当作12.3元出售，一共卖出17支．请帮小李算一算，她一共要赔款多少元？
<gadget id="calculator">13.2 - 12.3</gadget>
<output>0.9</output>

<gadget id="calculator">0.9 * 17</gadget>
<output>15.3</output>

<result>15.3</result>