A buyer is purchasing a resale flat and noticed an incorrect conversion from square feet to square meters for the carpet area in the registered agreement (Index 2). While the square footage is correct and consistent throughout other documents, the square meter conversion is wrong. The buyer is seeking advice on how to correctly state the carpet area in the new sale deed, questioning whether to change the sqm value, remove it, or if a rectification deed is necessary. Legal advice suggests obtaining a rectification deed from the seller to correct the arithmetical error in the registered document before proceeding with the new sale deed.