Xiao Ming's father planned to buy a train sleeper ticket from Beijing to Nanjing at 21:00 (the price is 275 yuan), but he bought a ticket for 9:00 by mistake, so he had to refund the ticket (railway regulations: 10% of the fee will be deducted when refunding the ticket) handling fee), and bought a 21:00 sleeper ticket (the price is 267 yuan), how much did Xiao Ming's father spend on the ticket this time?
小明的爸爸打算买一张从北京到南京21：00的火车卧铺票(价钱为275元)，结果错买了一张9：00的票，只好退票(铁路规定：退票时需扣10%的手续费)，又买了一张21：00的卧铺票(价钱为267元)，小明的爸爸这次买票共花了多少钱？
<gadget id="calculator">10 / 100</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">275 * (1/10)</gadget>
<output>55/2 = around 27.5</output>

<gadget id="calculator">(55/2) + 267</gadget>
<output>589/2 = around 294.5</output>

<result>589/2 = around 294.5</result>