The price of a commodity is 70 yuan. Shortly after the price is reduced (1/10), the price is increased again (1/10). How much is the price at this time?
一种商品的价格是70元，降价了(1/10)后不久，又涨价了(1/10)，这时的价格是多少元？
<gadget id="calculator">1 / 10</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">1 - (1/10)</gadget>
<output>9/10 = around 0.9</output>

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

<gadget id="calculator">70 * (9/10) * (11/10)</gadget>
<output>693/10 = around 69.3</output>

<result>693/10 = around 69.3</result>