Problem $2-14$ Calculating Total Cash Flows

Nightwish Corporation shows the following information on its $2021$ income statement: Sales $=$$$235,000$; Costs $=$$$141,000$; Other expenses $=$$$7,900$; Depreciation expense $=$ $$14,600$; Interest expense $=$$$14,900$; Taxes $=$$$19,810$; Dividends $=$$$12,000.$ In addition, you're told that the firm issued $$6,400$ in new equity during $2021$ and redeemed $$4,900$ in outstanding long$-$term debt. $($Do not round intermediate calculations.$)$

a$.$ What is the $2021$ operating cash flow?

b$.$ What is the $2021$ cash flow to creditors?

c$.$ What is the $2021$ cash flow to stockholders?

d$.$ If net fixed assets increased by $$25,000$ during the year, what was the addition to net working capital $($NWC$)?$

Answer is complete but not entirely correct.

$\backslash$table$[[$a$.$ Operating cash flow,$$,66,290],[$b$.$ Cash flow to creditors,$$,19,800],[$c$.$ Cash flow to stockholders,$$,5,600],[$d$.$ Addition to NWC$,$$$,14,600,$