The original price of a schoolbag is 105 yuan, and it is sold at a 30% discount. What is the current price?
一个书包原价是105元，打七折出售，现价是多少元．
<gadget id="calculator">70 / 100</gadget>
<output>7/10 = around 0.7</output>

<gadget id="calculator">105 * (7/10)</gadget>
<output>147/2 = around 73.5</output>

<result>147/2 = around 73.5</result>