Garza Electronics expects to sell 640 units in January, 390 units in February, and 1,700 units in March. January's beginning inventory is 980 units. Expected sales for the whole year are 15,600 units. Garza has decided on a level monthly production schedule of 1,300 units (15,600 units/12 months 1,300 units per month). What is the expected end-of-month inventory for January, February, and March? January February March Ending inventory