A bag of flour eats 23 kilograms, and there are 27 kilograms left. What percentage of this bag of flour is left?
一袋面粉吃了23千克，还剩27千克．还剩这袋面粉的百分之几？
<gadget id="calculator">23 + 27</gadget>
<output>50</output>

<gadget id="calculator">27 / 50</gadget>
<output>27/50 = around 0.54</output>

<result>27/50 = around 0.54</result>