I know the answer is $38,740 and I know the solution is 29,480 x0.9 + (30 ,520 x 0.4) =$38,740. What I do not understand is that why $30,520 is multiplied with 40%, instead of 50%.

Please provide detailed explanation. Thank you.

Bear Company has the following information Month January February March April May Budgeted Purchases $26,800 29,000 30,520 29480 27,680 Purchases are paid for in the following manner 10% of the purchase amount in the month of purchase 50% of the purchase amount in the month after purchase 40% of the th after purchase purchase amount in the mon