Check n Frigid Supplies reported beginning inventory of 455 units, for a total cost of $4,550. The company had the following transactions during the month: Jan. 3 Sold 30 units on account at a selling price of $16 per unit. 6 Bought 35 units on account at a cost of $10 per unit. 16 Sold 35 units on account at a selling price of $16 per unit. 19 Sold 30 units on account at a selling price of $21 per unit. 26 Bought 17 units on account at a cost of $10 per unit. 31 Counted inventory and determined that 395 units vere on hand. 3-a. What is the dollar amount of shrinkage that you were able to determine in periodic inventory system? O One cannot determine $170 3-b. Wh at is the dollar amount of shrinkage that you were able to determine in perpetual inventory system? Amount of Shnnkage