The price of A is 20% higher than that of B, and the price of B is 10% higher than that of C. By how much is A's price higher than C's?
甲的价格比乙高20%，乙的价格比丙高10%．甲的价格比丙高百分之几？
<gadget id="calculator">10 / 100</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">1 + (1/10)</gadget>
<output>11/10 = around 1.1</output>

<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 + (1/5)</gadget>
<output>6/5 = around 1.2</output>

<gadget id="calculator">1 * (11/10) * (6/5)</gadget>
<output>33/25 = around 1.32</output>

<gadget id="calculator">(33/25) - 1</gadget>
<output>8/25 = around 0.32</output>

<gadget id="calculator">(8/25) / 1</gadget>
<output>8/25 = around 0.32</output>

<result>8/25 = around 0.32</result>