An invoice is more than its lines. Delivery, fuel, a deposit, a discount. NexReps keeps them next to the lines so the total adds up — and so a discount lowers what your products really cost.
The gap
Printed total, minus the lines, minus the charges, minus the tax. It must be zero before the invoice can be validated.
The scan reads the printed footer, so a delivery fee, a fuel surcharge or a discount usually arrives on its own. A gap that is not zero means something on the paper never made it to the screen — a charge nobody typed, or a line the scan misread.
Add charge
Delivery, fuel, surcharge, deposit, other. An amount. Charges count in the invoice total; they do not change the cost of your products.
Add discount
Percent or amount. Type what the invoice says.
Applies to — the whole invoice, or one line. A line has to be saved before a discount can point at it.
NexReps computes the exact amount when you save. A discount is always stored as a negative.
A discount lowers the real cost
A charge is money on top. A discount is money off what you bought — so it lowers the price of the lines it applies to.
26.872 kg of kunafa at $40 a kilo, 10% off the invoice: the kunafa costs you $36 a kilo, and that is the price your recipes use. The line shows a blue note: discount applied.
Line discounts come first. An invoice percentage then applies to what is left.
A discount never changes the stock. You received 26.872 kg, whatever you paid.
The arithmetic check
The check that quantity × price equals the line total uses the printed figures, before the discount. The discount lives in its own row.
Next
Ingredients — what the lines link to.