If the decimal point of a number is moved two places to the right, it is 4020. What is the decimal number?
一个数的小数点向右移动两位后是4020，这个小数是多少．
<gadget id="calculator">4_020 / 100</gadget>
<output>201/5 = around 40.2</output>

<result>201/5 = around 40.2</result>