help with part c please

As the production planner for Xiangling Hu Products, Inc, you have been given a bill of material for a bracket that is made up of a base, 1 spring, and 4 clamps. The base is assembled from 1 clamp and 1 housing. Each clamp has 1 handle and 1 casting. Each housing has 1 bearing and 2 shafts. There is no inventory on hand. This exercise contains only parts b and c. The product structure is as follows: b) Determine the gross quantities needed of each item if you are to assemble 75 brackets. Base: 75.units (enter your response as a whole number) Spring: 75 units (enter your response as a whole number). Clamp: 375 units (enter your response as a whole number). Housing. 75 units (enter your response as a whole number). Handle: 375 units (enter your response as a whole number). Casting: 375 units (enter your response as a whole number) Bearing: 75 units (enter your response as a whole number) Shaft: 150 units (enter your response as a whole number) c) Compute the net quantities needed if there are 25 of the base and 75 of the clamp in stock Base: units (enter your response as a whole number). Spring: units (enter your response as a whole number). Clamp: units (enter your response as a whole number). Housing: units (enter your response as a whole number). Handle: units (enter your response as a whole number). Casting: units (enter your response as a whole number). Bearing: units (enter your response as a whole number). Shaft: units (enter your response as a whole number)