A parallelogram billboard has a base length of 14cm and a height of 3.2cm. If 0.7kg of paint is used per square meter, how many kilograms of paint should be used for this billboard at least?
一块平行四边形广告牌，底长14cm，高3.2cm，如果每平方米用油漆0.7千克，这块广告牌至少用多少千克油漆？
<gadget id="calculator">14 / 100</gadget>
<output>7/50 = around 0.14</output>

<gadget id="calculator">3.2 / 100</gadget>
<output>0.032</output>

<gadget id="calculator">(7/50) * 0.032 * 0.7</gadget>
<output>0.003136</output>

<result>0.003136</result>