Fixed wage without performance metrics is valid but allows correction if grossly inadequate to work performed.

The Supreme Court quashed the appellate court's ruling that declared a fixed wage clause invalid and remanded the case for a new decision. The lower courts had found that an annex establishing a flat monthly rate for cold storage operators was ineffective, requiring the employer to revert to the old system with separate bonuses. The Supreme Court held that while a lump-sum wage does not automatically void an employment contract, it does not preclude a claim for correction if the amount is grossly disproportionate to the actual work performed.