When Li Ming calculated 25*(□+0.6), he miscalculated as 25*□+0.6. What is the error between the correct value and the wrong value of the calculation result?
李明在计算25*(□+0.6)时，误算成了25*□+0.6，计算结果的正确值与错误值的误差是多少？
<gadget id="calculator">15 - 0.6</gadget>
<output>14.4</output>

<result>14.4</result>