Answer:
*Expected sales units= 20% of next quarter's unit sales
*Estimated first quarter 2018 sales units : 210000+(210000*10%) =231,000 : 231000*20%
*Beginning inventory for first quarter = 20% of estimated first qurter's sale = 210000*20%= 42000
Step-by-step explanation:
* desired ending direct material for qtr 4 = 499000*10% =49900
* beginning direct material for qtr-1 = 436000*10% =43600