Students from Class 4 and 1 of Guangming Primary School were divided into two teams to collect tree species. The 22 people in the first team collected a total of 15.4 kilograms of tree species, and the 24 people in the second team collected a total of 18 kilograms of tree species. Calculate which team collects more tree species per person on average? How many kilograms more?
光明小学四1班同学分成两队采集树种，第一小队22人共采集树种15.4千克，第二小队24人共采集树种18千克，算一算哪个小队平均每人采集的树种多？多多少千克？
<gadget id="calculator">18 / 24</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">15.4 / 22</gadget>
<output>0.7</output>

<gadget id="calculator">(3/4) - 0.7</gadget>
<output>0.05</output>

<result>0.05</result>