Facts: Assume that a manufacturing company usually pays a waste company (by the pound) to haul away manufacturing waste. Recently, a landfill gas company offered to buy a small portion of the waste for cash, saving the manufacturing facility a portion of its disposal costs and providing it with proceeds from the disposal.

Currently, the sale of manufacturing waste is not a primary business activity of the manufacturer; however, it will now result in an inflow of cash.

Requirement:

Which is more appropriate classifying this transaction as an increase in revenue, a decrease in expense, or as a gain?

What if the dollars of sales of waste are material, versus immaterial?

Support your argument with CODIFICATION REFERENCE..