Business has been bad this year — he lost money on every shipment.
Tips
usage
The 折 here is shé (second tone), the 'sustain a loss' reading — not zhé (the discount / fold reading) or zhē (the turn-over reading). 本 means the capital, so the literal sense is 'to break (eat into) the principal'.
mistakes
Don't confuse with 折扣 ('discount') — that 折 is a different reading. 折本 means actually losing money, not discounting.
