A farmer summarized his records for the month of January 2019 as follows:
Sales invoice = N148500
Purchase invoice = N69,700
lf he consumed N38,800 of his produce, what will be the owner's net gain for the month?

• A.N11,700
• B.N28,500
• C.N40,000
• D.N63,000
• E.N100,000