Pricing is a fundamental aspect of financial modelling, and is one of the four Ps of the marketing mix. The other three aspects are product, promotion, and place. It is also a key variable in microeconomic price allocation theory. Price is the only revenue generating element amongst the four Ps, the rest being cost centers. Pricing is the manual or automatic process of applying prices to purchase and sales orders, based on factors such as: a fixed amount, quantity break, promotion or sales camp… (More on Pricing)