The 10th loaf
In the typical rangeEvery 10th loaf is free
Bread is bought two or three times a week, so ten stamps is a month. It rewards the customers who already keep you busy.
10 stamps · reward worth €4.00 ≈ 6 % of what the customer spends to earn it · costs you about €1.60 per reward at 60 % margin
Run these numbers in the calculator