A manufacturing firm's costs were as follows: o Factory overhead - $ 122,000 o Depreciation of production plant - $6,400 o Admin expense - $8,800 o Direct labour - $86,400 o Selling and distribution - $12,000 o Closing work in progress $12,400 o Raw materials - $55,000 There was no opening work in progress, and mark up is 20%. What is the transfer value of goods produced? Select one: O a. $308,880 O b. $316,080 O c. $323,760 O d. $333,840