Hello, I desperately need help with this accounting scenario, I cannot figure out. I am being asked to find the current year's entry for long-term debt on a common-sized balance sheet. I keep getting the incorrect answer and it tells me that the correct answer is 21.16%. Any help would be greatly appreciated! Thank You!

Category Prior year Current year Accounts payable 41,400 45,000 Accounts receivable 115,200 122,400 Accruals 16,200 13,500 Additional paid in capital 200,000 216,660 Cash 777 ??? Common Stock @ par value 37,600 42,000 COGS 131,400 170,482.00 Depreciation expense 21,600 23,018.00 Interest expense 16,200 16,088.00 Inventories 111,600 115,200 Long-term debt 135,000 139,243.00 Net fixed assets 375,324.00 399,600 Notes payable 59,400 64,800 Operating expenses (excl. depr.) 50,400 66,747.00 Retained earnings 122,400 136,800 Sales 255,600 338,450.00 Taxes 9,900 19,130.00