The controller of Harrington Company estimates sales and production for the first four months of 2020 as follows:

	January	February	March	April
Sales	$29300	$38600	$54400	$24200
Production in units	1,100	1,600	2,000	2,700

Sales are 40% cash and 60% on account, and 60% of credit sales are collected in the month of the sale. In the month after the sale, 40% of credit sales are collected. It takes 4 kg of direct materials to produce a finished unit, and direct materials cost $5 per kg. All direct materials purchases are on account, and are paid as follows: 40% in the month of the purchase and 60% the following month. Ending direct materials inventory for each month is 40% of the next months production needs. Januarys beginning materials inventory is 1,110 kg. Suppose that both accounts receivable and accounts payable are zero at the beginning of January.

d) What are the materials purchases costs for February?

Material purchases for February

$35200

e) What are cash payments on account for February?

Cash payments on account

$

I have difficulties with the question e). The calculations I got was $29,680, but it said the answer is incorrect.