The original price of a catty of rice is 2 yuan, first increase the price by 10%, and then reduce the price by 10%, what is the current price of a catty of rice
一市斤大米原来售价2元，先提价10%，再降价10%，问现在每市斤大米的售价是多少元
<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">1 - (1/10)</gadget>
<output>9/10 = around 0.9</output>

<gadget id="calculator">2 * (11/10) * (9/10)</gadget>
<output>99/50 = around 1.98</output>

<result>99/50 = around 1.98</result>