A store buys a batch of clothes, and the price of each set is 15% more than the purchase price. If you sell all of them, you can make a profit of 1,800 yuan; if you only sell 80 sets, the difference of 960 yuan is enough for the cost. How much is the price of each set of clothing?
某商店购进一批服装，每套售价比进价多15%．如果全部卖出，则可获利1800元；如果只卖80套，则差960元才够成本．服装的售价每套多少元？
<gadget id="calculator">15 / 100</gadget>
<output>3/20 = around 0.15</output>

<gadget id="calculator">1_800 / (3/20)</gadget>
<output>12_000</output>

<gadget id="calculator">12_000 - 960</gadget>
<output>11_040</output>

<gadget id="calculator">11_040 / 80</gadget>
<output>138</output>

<result>138</result>