Boss Li of a clothing store sold a suit for 1,400 yuan and made a profit of 40%. How much money did Boss Li make?
某衣服店的李老板以1400元的价格售出一套西装，结果赚了40%，这位李老板赚了多少钱？
<gadget id="calculator">40 / 100</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">1 + (2/5)</gadget>
<output>7/5 = around 1.4</output>

<gadget id="calculator">1_400 / (7/5)</gadget>
<output>1_000</output>

<gadget id="calculator">1_400 - 1_000</gadget>
<output>400</output>

<result>400</result>