[function]
?When the unit price, the quantity, and the tax rate are input, it calculates automatically.
?Total is calculated automatically when adding it to the list.
?It corresponds to the discount.

[explanation of button]
?[Clear]button ??? The value under the calculation is returned to 0.
?[add list]button ??? It adds it to the list.
?[delete]button ??? Details selected by the list are deleted. When the total is selected and the button is pushed, all contents of the list are deleted.

[Remarks]
Please advertise this application freely.

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