The teachers and students of Hongguang Primary School donated money to the disaster area. The first donation was 4,000 yuan, and the second donation was 4,500 yuan. How much more was the second donation than the first donation?
红光小学师生向灾区捐款，第一次捐款4000元，第二次捐款4500元，第二次比第一次多捐百分之几？
<gadget id="calculator">4_500 - 4_000</gadget>
<output>500</output>

<gadget id="calculator">500 / 4_000</gadget>
<output>1/8 = around 0.125</output>

<result>1/8 = around 0.125</result>