A commodity priced at 200 yuan is reduced in price (3/20) and then increased in price (3/20). What is the price of the commodity at this time?
一件200元的商品，降价(3/20)后又涨价(3/20)，这时商品的价钱是多少元．
<gadget id="calculator">3 / 20</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">1 + (3/20)</gadget>
<output>23/20 = around 1.15</output>

<gadget id="calculator">200 * (17/20) * (23/20)</gadget>
<output>391/2 = around 195.5</output>

<result>391/2 = around 195.5</result>