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Item Type can be one of Rx, Frame, Stock, Other or Misc; these will be used in subtotals on the Sales Analysis report, for examplesome reports, and will determine any early payment discount for the entry. For each line item, the line can be marked discountable (or not), and taxable (or not), using the checkboxes provided. Both discount and tax totals are shown in the bottom part of the screen.
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