Urban Decay, which offers cosmetics such as makeup for eyes, lips, nails, and skin is part of the L’Oréal Luxe brand portfolio. Its products are sold online and in brick-and-mortar stores internationally. Their particular challenge was increasing average cart size during sales, both in terms of value and number of products. They wanted to determine if a promotional banner, which advertises a discount for 85€ spent, would increase average cart size, the quantity of items, and revenue.