All sales are made on account at $20 per unit. Sixty percent of the sales are collected in the month of sale; the remaining 40% are collected in the following month. Forecasted sales for the first five months of 20X2 are: January, 1,500 units, - February, 1,600 units; March, 1,800 units; April, 2,000 units; May, 2,100 units. On your answer you only did the first 3 months and not April and May?