After a number is reduced to the original (1/10), it is enlarged by 100 times and is 4.78. What is the original number?
一个数缩小到原来的(1/10)后，又扩大了100倍是4.78，这个数原来是多少
<gadget id="calculator">4.78 / 100</gadget>
<output>0.0478</output>

<gadget id="calculator">0.0478 * 10</gadget>
<output>0.478</output>

<result>0.478</result>