Give a discount at the counter

Haggling is how a counter works, and a promo code is the wrong tool for it: a code is an offer you broadcast, a discount is a price you agreed with the person standing in front of you. The till and the order board both take that agreed price directly, in final rupees, never percentages.

• One line: tap the price on any bill line and type what you agreed per piece. The shelf price shows struck through beside it, so the bill still tells the truth. You cannot mark a price up, and emptying the field puts the shelf price back.
• The whole bill: press Discount beside Take payment and type what they pay, or tap the 5% and 10% chips. It appears as its own Discount row above the total, with an x to remove it.
• An online order: open the order on the Orders tab and press Discount. The totals rework themselves with service charge and VAT included, landing at or just below the figure you agreed, and the order card shows the discount after it is set. An invoiced order will not take one; issue the invoice after the price is settled.

Receipts and invoices print the struck-through prices and the discount row, so the customer sees exactly what was agreed. Analytics and the daily summary email count discounts too, and profit is worked on what was actually paid.