Schwert Corp. shows the following information on its $2020$ income statement: sales $=$ $$244,000$; costs $=$$$144,000$; other expenses $=$$$7,900$; depreciation expense $=$$$18,000$; interest expense $=$$$13,200$; taxes $=$$$21,315$; dividends $=$$$10,000.$ In addition, you're told that the firm issued $$4,700$ in new equity during $2020$ and redeemed $$3,200$ in outstanding long$-$term debt.

a$.$ What was the $2020$ operating cash flow? $($Do not round intermediate calculations.$)$

b$.$ What was the $2020$ cash flow to creditors? $($Do not round intermediate calculations.$)$

c$.$ What was the $2020$ cash flow to stockholders? $($Do not round intermediate calculations.$)$

d$.$ If net fixed assets increased by $$30,000$ during the year, what was the addition to NWC$?($Do not round intermediate calculations.$)$

$\backslash$table$[[,],[$a$.,$Operating cash flow,$],[$b$.,$Cash flow to creditors,$],[$c$.,$Cash flow to stockholders,$],[$d$.,$Addition to NWC$,]]$