A grain store shipped 450 bags of flour, which was 180 bags less than the amount of rice shipped. What percentage is the shipped rice as flour?
某粮店运来面粉450袋，比运来的大米少180袋．运来的大米是面粉的百分之几？
<gadget id="calculator">450 + 180</gadget>
<output>630</output>

<gadget id="calculator">630 / 450</gadget>
<output>7/5 = around 1.4</output>

<result>7/5 = around 1.4</result>