1. A weighing apparatus for measuring a quantity of items of nominally uniform weight comprising: means associated with the apparatus for receiving items of nominally uniform weight to be counted and for providing an output of the weight of such items; means for detecting said weight to determine a change in a number of said items; means for detecting the weight of the number of items changed and comparing that weight with a preset threshold weight; and means for computing a count of the number of items changed for each weight less than or equal to said preset threshold.