A car 4S store, the car sales in March this year increased by 15% compared to the same period last year, and the car sales in March this year are the sales in March last year.
一家汽车4s店，今年三月份汽车销量比去年同期增加一成五，今年三月份汽车销量是去年三月份销量的多少．
<gadget id="calculator">15 / 100</gadget>
<output>3/20 = around 0.15</output>

<gadget id="calculator">1 + (3/20)</gadget>
<output>23/20 = around 1.15</output>

<result>23/20 = around 1.15</result>