The original cost of a suit of clothing is 160 yuan, but due to technological innovation, the cost has been reduced by 20%. How much does each set cost now?
一套服装原来成本160元，由于技术创新，成本降低20%．现在每套成本多少元？
<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 - (1/5)</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">160 * (4/5)</gadget>
<output>128</output>

<result>128</result>