Sales sensitivity index
Sales sensitivity index calculation = % of sales ÷ % of used shelf space
It is part of the marketing ratios used for the merchandising analysis.
It measures for one item if the space it occupies in the shelves is appropriated considering its contribution to the sales of this point of sales or these shelves.
Its « optimal theoretical » value is 1. It corresponds to one item that occupies a space in the shelves proportional to its contribution to the sales.