The Doorjam Company makes the latest in technologically advanced door jams. Its product is in such demand that it needs to protect itself against stock outs of its product. To do so, it calculates that 20% of the next months sales be on hand at the end of each month. Budgeted unit sales for the next four months are:

April May June July

Monthly budgeted sales 40,000 50,000 60,000 70,000

Calculate the budgeted production for June.