What is the original number after moving the decimal point of a number to the right by 2 digits and adding 29.7 to the original number?
把一个数的小数点向右移动2位后比原来数增加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>