set of "Youngor" suits costs 800 yuan, and the price is 1,200 yuan. If you sell it at 10% off the price, how much money can you actually earn?
一套"雅戈尔"西服进价800元，标价1200元，如果按标价打九折出售，实际能赚多少元？
<gadget id="calculator">90 / 100</gadget>
<output>9/10 = around 0.9</output>

<gadget id="calculator">1_200 * (9/10)</gadget>
<output>1_080</output>

<gadget id="calculator">1_080 - 800</gadget>
<output>280</output>

<result>280</result>