Given the following data: Period 1 2 3 4 5 6 7 8 Gross Requirements 11 12 23 16 13 18 11 16 The beginning inventory is 0 and there are no scheduled receipts. The order cost is 40 and the holding cost is $1 per part per period. What are the order costs over the 8 periods using the lot-for-lot size rule

Xinhong company is considering replacing one of its manufacturing machines. the machine has a book value of $39,000 and a remaining useful life of 5 years, at which time its salvage value will be zero. it has a current market value of $49,000. variable manufacturing costs are $33,300 per year for this machine. information on two alternative replacement machines follows. alternative a alternative b cost $ 115,000 $ 117,000 variable manufacturing costs per year 22,900 10,100 1. calculate the total change in net income if alternative a and b is adopted. 2. should xinhong keep or replace its manufacturing machine