A domestic refrigerator used to cost 2,700 yuan per unit, but now it is 1/10 lower than before. How much is each unit now?
一种国产冰箱原来每台售价2700元，现在比原来降低了(1/10)，现在每台多少元？
<gadget id="calculator">1 / 10</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">1 - (1/10)</gadget>
<output>9/10 = around 0.9</output>

<gadget id="calculator">2_700 * (9/10)</gadget>
<output>2_430</output>

<result>2_430</result>