The store is doing promotional activities. Dad bought Xiaoyu a bicycle for 153 yuan, which is 15% lower than the original price. How much is the price of this bicycle lower than the original price?
商店搞促销活动，爸爸给小雨买了一辆自行车153元，比原价降价了15%，这辆自行车比原价降价了多少元？
<gadget id="calculator">15 / 100</gadget>
<output>3/20 = around 0.15</output>

<gadget id="calculator">1 - (3/20)</gadget>
<output>17/20 = around 0.85</output>

<gadget id="calculator">153 / (17/20)</gadget>
<output>180</output>

<gadget id="calculator">180 - 153</gadget>
<output>27</output>

<result>27</result>