This cardigan has an checkerboard pattern and that’s why we are CHECKING our comfort, cause the Tweed yarn makes it super comfy and warm

Also the gauge and yardage is for the tweed yarn and since it is two colourd, you should have half the yardage in one colour and half the yardage in the other colour.
References size XS,S- 828 meters

The needed yardage for the category 3 yarn is around 266-532meters.