The Gross Margin Percentage is 31.62%.
Sales Price = (14,000 gallon*$3.5 + 15,500 gallon*$6)
Sales Price = $49,000 + $93,000
Sales Price = $142,000
Total Processing Costs = $49,000
Separable Costs = $13500 + $34600
Separable Costs = $48,100
Gross profit = Sales Price - Total - Processing Costs- Separable Costs
Gross profit = $142,000 - $49,000 - $48,100
Gross profit = $44,900
Gross Margin Percentage = Gross profit/Sales Price * 100
Gross Margin Percentage = $44900 / $142000 * 100
Gross Margin Percentage = 31.62%
Therefore, the Gross Margin Percentage is 31.62%.
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