We are doing our own floor tiling after handover. Handover is next Thursday

We have had a few tiling quotes, the first tiler we went to looked at our plans and said we would need 127sqm of tiles

But no matter how hard I try, I just can't come up with that amount. With 10% wastage I get around 90sqm.
I've attached our floor plan here
We are using a 600 x 300 tile.
We are tiling the Front and Back Hallway, the Family and Meals area as well as the Kitchen.
Thanks