Answer:
a. ratio of fixed assets to long-term liabilities
Explanation:
As we know that
Margin of safety = Expected sales - break even sales
where,
Break even point = (Fixed expenses) ÷ (Profit volume Ratio)
where,
Contribution margin per unit = Selling price per unit - Variable expense per unit
And, Profit volume ratio = (Contribution margin per unit) ÷ (selling price per unit) × 100
And,
Expected sales = Selling price per unit × Unit sales per month
So to borrow additional fund on a long term basis, the ratio of fixed assets to long-term liabilities is required