The original price of a suit of a certain brand is 800 yuan. In order to promote sales, the price has been lowered, the sales volume has doubled, and the income has increased by 40%. How much is the price cut for each suit?
某品牌西服原价800元一套，为了促销，降低了价格，销量增加了1倍，收入增加了40%，问每套西服降价多少元？
<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 + 1</gadget>
<output>2</output>

<gadget id="calculator">(7/5) / 2</gadget>
<output>7/10 = around 0.7</output>

<gadget id="calculator">800 * (7/10)</gadget>
<output>560</output>

<gadget id="calculator">800 - 560</gadget>
<output>240</output>

<result>240</result>