Last year, 750 students in a certain elementary school participated in the group safety insurance for primary school students. The insurance amount per person was 4,000 yuan, and the premium rate was 0.1%. Last year, 2 students were injured due to accidents, and each of them received a compensation of 450 yuan from the insurance company. What percentage of these compensations account for the total insurance premiums paid by the school?
某小学750名学生去年参加了小学生团体平安保险，每人的保险金额是4000元，保险费率是0.1%．去年有2名学生因意外事故受伤，每人得到保险公司的赔款450元．这些赔款占全校缴纳保险费总数的百分之几？
<gadget id="calculator">0.1 / 100</gadget>
<output>0.001</output>

<gadget id="calculator">4_000 * 0.001 * 750</gadget>
<output>3_000</output>

<gadget id="calculator">2 / 3_000</gadget>
<output>1/1_500 = around 0.000667</output>

<gadget id="calculator">450 * (1/1_500)</gadget>
<output>3/10 = around 0.3</output>

<result>3/10 = around 0.3</result>