Making a by-product processing decision based on a difference in income. A company is attempting to decide whether to sell a by-product without additional processing or to process it further. Refer to the data below. Calculate the difference in income between additional processing and no further processing. Should the company sell the by-product without further processing?

Estimated units of by-product per month, 1,500 units Estimated selling price without further processing, $3.50 per unit Estimated selling price with further processing, $4.25 per unit Estimated labor costs to process further, $1,000 per month Estimated additional material costs to process further, $.30 per unit Estimated additional overhead costs to process further, $.20 per unit