Category Prior Year Current Year

Accounts payable $??????$

Accounts receivable $320,715397,400$

Accruals $40,50033,750$

Additional paid in capital $500,000541,650$

Cash $17,50047,500$

Common Stock $94,000105,000$

COGS $328,500428,305\mathrm{.}00$

Current portion long$-$term debt $33,75035,000$

Depreciation expense $54,00055,183\mathrm{.}00$

Interest expense $40,50041,835\mathrm{.}00$

Inventories $279,000288,000$

Long$-$term debt $337,432\mathrm{.}00399,325\mathrm{.}00$

Net fixed assets $946,535999,000$

Notes payable $148,500162,000$

Operating expenses $($excl$.$ depr.$)126,000162,572\mathrm{.}00$

Retained earnings $306,000342,000$

Sales $639,000848,560\mathrm{.}00$

Taxes $24,75047,824\mathrm{.}00$

What is the firm's current year net profit margin?