The function of a stereo has been improved, and the price of each unit has been increased by 40%. The current price is 7,350 yuan. How much is the price increase?
一台音响改进了功能，每台提价40%，现在售价是7350元，提价多少元？
<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">7_350 / (7/5)</gadget>
<output>5_250</output>

<gadget id="calculator">5_250 * (2/5)</gadget>
<output>2_100</output>

<result>2_100</result>