Sunny corporation reported the following results for december: Description AmountNumber of units sold 800 unitsSelling price per unit $500 per unitCost of goods sold per unit (all variable) $250 per unitVariable selling expense per unit $45 per unitFixed selling expense $22,100Variable administrative expense per unit $32 per unitFixed administrative expense $15,400 The gross margin for December is:

The Gross margin of an organisation or business measure the extent by which its income exceeds the costs it incurs in producing its goods and or services.

The gross margin is measured in percentages. The higher the percentage of this margin, the higher the effectiveness of the company's management in deriving value from every dollar invested.

Explanation:

To arrive at Gross Margin, one is required to subtract the total cost of goods sold from total revenue for the period and dividing that number by revenue. That is:

Gross Margin (GM) = [tex]\frac{Revenue-Cost of Goods Sold}{Revenue}[/tex]

Step I - Calculate Revenue

This is given as the total amount of goods sold which is:

800 x $500 = $400,000

Step II - Calculate Cost of Goods Sold

Cost of goods sold per unit is given as

$250 per unit.

Total Cost of Goods sold therefore is

800 x $250 = $200,000

Step III - Calculate Gross Margin

= [tex]\frac{400,000-200,000}{400,000}[/tex]

= [tex]\frac{200,000}{400,000}[/tex]

= [tex]\frac{1}{2}[/tex] or 0.5%

Cheers!