The cost of a part is 280 yuan. After improving the technology, the cost is reduced by 25%. What is the current cost of this part?
一种零件的成本是280元，改进技术后，成本降低了25%，则这种零件现在的成本是多少元
<gadget id="calculator">25 / 100</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 - (1/4)</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">280 * (3/4)</gadget>
<output>210</output>

<result>210</result>