Global Publishers has collected the following data for recent months:
Month Issues published Total cost
March 20,500 $20,960
April 21,800 22,464
May 17,750 18,495
June 21,200 21,395
Required:
a. Using the high-low method, find variable cost per unit, total fixed costs, and the total cost equation.
b. What is the estimated cost for a month in which 19,000 issues are published?