The impact of a reward on your profit margin is far smaller than merchants expect, because an item reward costs you the item's cost rather than its price. The gap between what the customer feels they won and what you actually pay is the whole profit of the programme, and it usually runs three to four times.
The mistake that kills a programme before it launches
Sit with any merchant considering a stamp card and you hear the same sentence: "So every sixth coffee I lose a coffee? That is a sixth of my revenue." The arithmetic is reasonable and the conclusion is completely wrong, and the error sits in one word: you do not lose a coffee, you lose the cost of a coffee.
The distance between price and cost is where the entire reward programme lives. If you sell at twenty and it costs you six, the free cup that feels to the customer like twenty riyals won took six out of your pocket. That is not an accounting trick; it is the real reason an item reward always beats a cash discount.
Reward impact on profit margin, across three trades
| Trade | Bill | Item cost | Cycle spend | What it costs you |
|---|---|---|---|---|
| Cafe | 22 riyals | 30% | 132 riyals | 5.0% |
| Bakery | 18 riyals | 35% | 108 riyals | 5.8% |
| Barbershop | 55 riyals | 15% | 330 riyals | 2.5% |
The barbershop is the clearest case: a service whose direct cost is low because most of it is the time of staff you are paying anyway. A free cut after six costs two and a half per cent of the cycle's revenue, while the customer feels they won seventeen per cent. That is close to seven times between the feeling and the cost.
Where the arithmetic turns against you
An item reward loses its advantage as item cost climbs relative to price. In a trade where cost runs at seventy per cent — electronics, spare parts, wholesale — a free item sits very close to cash, and the gap the whole programme rests on disappears.
An item reward suits you if…
- Item cost is under 40% of its price.
- The reward is something you make rather than something you buy in.
- The item is always available and needs no special order.
- You can absorb a spike in redemptions falling in one week.
Consider something else if…
- Item cost is over 60% of its price.
- The reward is something bought so rarely that its value is not felt.
- Every unit you hold carries a serial number and limited stock.
- The cheapest thing on your menu is always what gets claimed.
That last line in the right-hand column is a common problem with a simple fix: name the reward as a specific item rather than leaving it open. "Your sixth coffee free" has a cost you know. "Any item free" means every customer picks the most expensive thing on the menu, and that is exactly what will happen.
Three numbers to watch after launch
- Members as a share of all your bills Your headline cost applies to member sales alone, so if only a third of receipts are members, the effect on your overall margin is a third of the rate.
- Average member bill against non-member If the first is higher, the programme is paying for itself out of the difference before it ever reaches your margin.
- Actual monthly reward cost One figure in riyals from your redemption log, compared against sales. The distance between it and your estimate is the sharpest test of whether your arithmetic was right.
The second one matters more than anything else here and is almost always ignored. In most shops the average member bill is meaningfully higher, because a cardholder visits more often and buys with more confidence. Measure that difference and you often discover the programme costs you nothing on net.
Common questions
How do I work out item cost if I do not know it?
Start with direct materials only: what physically goes into the item. Leave out rent and wages, because neither rises when you make one more cup. That simplification gives you a slightly conservative figure and is entirely good enough for a reward decision — and vastly better than guessing.
What about services with no materials cost?
Their real cost is time and the sale you gave up. If the chair was empty at that hour anyway, a free cut costs close to nothing directly. If it fell at your busiest moment and displaced a paying customer, it cost you that service's entire margin.
Should I count rewards that never get claimed?
Do not price around them. Some cycles are never completed, which pushes your real cost below the calculated one, but it is a gap you neither control nor can forecast. Budget for full redemption and treat the unclaimed remainder as a safety margin rather than a source of profit.