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After filling the Price and Quantity fields, the Calculate button becomes active. Pressing this button automatically fills the Amount field with the calculated value (Price*Quantity), before calculation, the values in the Price (up to two decimal places) and Quantity (up to three decimal places) fields will also be automatically rounded according to arithmetic rules.
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For merchants that need to transfer extra parameters for cheque items, these parameters are displayed in the form of adding an item.
Item adding window witch extra parameters
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