When Wang Ming calculated a subtraction formula, he regarded 8.3 as 0.83. How much is the difference between the calculated result and the correct result?
王明在计算一道减法算式时将8.3看成了0.83，这样计算结果与正确结果相差多少？
<gadget id="calculator">8.3 - 0.83</gadget>
<output>7.47</output>

<result>7.47</result>