Move the decimal point of a decimal to the right by two places, and the difference between the new number and the original number is 29.7. What is the original number?
把一个小数的小数点向右移动两位，得到一个新数与原数相差29.7，原数是多少．
<gadget id="calculator">100 - 1</gadget>
<output>99</output>

<gadget id="calculator">29.7 / 99</gadget>
<output>0.3</output>

<result>0.3</result>