assign a price to each of a plurality of products, each product comprising one or more product components;

assign a demand probability value to each product;

calculate a component value for each component by:

(a) assuming a beginning value for each component;

(b) for a first component, calculating prorated values, such that for each product using that component, a prorated value is calculated on that component by calculating the difference between the product price and a value of the product's other components;

(c) calculating a component value as a function of the prorated values and the probability values;

(d) repeating (b) and (c) for all other components;

(e) determining whether the component values converge; and

(f) if any component value does not converge, using the calculated component value as the beginning component value and repeating (b) through (e) for that component; and

calculating a value for each product, by summing the component values of all components of that product.