Refer to the following items on the balance sheets of a firm for the years ending December 31, 2018 and 2019.

Item	2018	2019
Accounts Payable	$729,500	$917,300
Long Term Debt	$1,267,700	$1,093,400
Common Stock ($1 par)	$2,184,000	$2,471,300
Retained Earnings	$3,227,100	$3,419,800

If the firm's interest expense on its 2019 income statement was $312,920, calculate the net cash flow to the firm's creditors in 2019.

Group of answer choices

$312,920

$138,620

$425,920

$487,220