An aging schedule helps a company to check on those customers who are overdue in their payments. The table below shows the aging schedule of BTS Pte Ltd's accounts receivable. (a) Calculate the percentage of balance outstanding (to 2 decimal places) for each age group. Age Group Accounts Receivable Balance Outstanding Percentage Less than 30 days 31 days to 60 days 61 days to 90 days Over 90 days TOTAL $45,000 $25,000 $9,000 $11,000 S$90,000 100.00% (4 marks) (b) If the credit period given to these customers is 30 days, evaluate whether the company has been performing well in managing its accounts receivable. (3 marks) (c) Besides the aging schedule, discuss another method which the company may use to monitor its accounts receivable