Car stores stipulate that all one-time payments can enjoy a 10% discount. Xiaoming's father buys a car worth 128,000 yuan and plans to make a one-time payment. In addition, the government stipulates that 10% of the payment amount must be paid for the vehicle purchase tax when buying a car. How much does Xiao Ming's father spend to buy this car?
汽车专卖店规定，凡一次性付款的可享受九折优惠．小明爸爸买一辆12.8万元的汽车，准备一次性付款．另政府规定买汽车还要按付款金额的10%缴纳车辆购置税，小明爸爸买这辆汽车一共要花多少万元．
<gadget id="calculator">90 / 100</gadget>
<output>9/10 = around 0.9</output>

<gadget id="calculator">12.8 * (9/10)</gadget>
<output>11.52</output>

<gadget id="calculator">10 / 100</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">11.52 * (1/10)</gadget>
<output>1.152</output>

<gadget id="calculator">11.52 + 1.152</gadget>
<output>12.672</output>

<result>12.672</result>