please help with this production budget. please show calculations so I may know how to do other homework problems. thanks!

Ruiz Company provides the following budgeted sales for the next four months. The company wants to end each month with ending finished goods inventory equal to 30% of next month's budgefed unit sales Finished goods imventory on Aprit 1 is 165 unts prepate? production budget for the months of April, May, and June