Rera carpet discrepancy

Hello, As per the Floor Plan shared by the Builder, 875 RERA carpet is confirmed on the Floor Plan/ Allotment Letter. However, when I plotted this on an excel and tried to convert the area from Square Meter to Square Feet, the total area shows as 841.27 Square Feet only (variance of 33.94 Square Feet) - which is a huge gap. Kindly help me in understanding if I am missing out on anything here? Or Do I need to raise this with the Builder? This is a redevelopment Project in Chembur, Mumbai and I am entitled for this 3 BHK flat from the Builder along with the rest of the members. Break up is as below: Hall/ Living Room: 5.95x3.4 square metres (217.753697 Square Feet) Balcony: 1.71x2.75 square metres (50.61723975 Square Feet) Bedroom 1: 4.18 x 3.25 square metres (146.2275815 Square Feet) Bedroom 2: 3.05 x 3.82 square metres (125.4101989 Square Feet) Bedroom 3: 3.05 x 3.35 square metres (109.98014825 Square Feet) Washroom 1: 1.35 x 2.35 square metres (34.14847275 Square Feet) Washroom 2: 1.34 x 2.2 square metres (31.7319772 Square Feet) Washroom 3: 1.2 x 2.35 square metres (30.354198 Square Feet) Kitchen: 3.4 x 2.35 square metres (86.003561 Square Feet) Passage: 1.05 x 0.8 square metres (9.041676 Square Feet)