Assume that in addition to estimating its ending inventory by the retail method, Fish Store of Exercise 8-8 also took a physical inventory at the marked selling prices of the inventory items. Assume further that the total of this physical inventory at marked selling prices was \(\$ 60,200\). Then

(a) determine the amount of this inventory at cost and

(b) determine the store's inventory shrinkage from breakage, theft, or other cause at retail and at cost.