A certain brand of new mobile phones is on sale, and the price is reduced by 12%. To catch up with the store celebration, the mall returned 2% of the selling price to customers in cash. Buying this brand of mobile phone at this time is equivalent to reducing the price by a few percent?
某品牌的新款手机进行促销活动，降价12%．赶上店庆，商场又返给顾客售价2%的现金．此时买该品牌这款手机，相当于降价百分之几？
<gadget id="calculator">12 / 100</gadget>
<output>3/25 = around 0.12</output>

<gadget id="calculator">1 - (3/25)</gadget>
<output>22/25 = around 0.88</output>

<gadget id="calculator">2 / 100</gadget>
<output>1/50 = around 0.02</output>

<gadget id="calculator">1 - (1/50)</gadget>
<output>49/50 = around 0.98</output>

<gadget id="calculator">(22/25) * (49/50)</gadget>
<output>539/625 = around 0.8624</output>

<gadget id="calculator">1 - (539/625)</gadget>
<output>86/625 = around 0.1376</output>

<result>86/625 = around 0.1376</result>