Textile Floor│Fabric Consumption formula for Pant

Textile Floor │Woven Fabric Consumption formula, fabric consumption formula for woven pant,  trousers
We all know that every part of garments have its LENGTH & WIDTH measurement. Basically on woven garments, we need to calculate the consumption in Yard/ Doz (2.54 Cm= 1 inch & 36 inch = 1 Yds,).