Measuring down 9″ from the waist I mark a perpendicular line (90 degrees) to the grainline. The 9″ mark was how far down from my waist the fullest part of my body was…that’s why it’s 9 and not 7 or let’s say 6. It just so happened to be at 9 inches.
So what I need to do now is mark a spot on this line that is 7/8″ from the edge. This will give me 3-1/2″ extra I need all around. Remember, I am dividing my total amounts to add equally to the front and the back.
Then all I need to do is cut from the side seam to the grainline, then down the grainline to the knee and over to the side seam again…but NOT through. I am going to pivot the pattern piece over until it hits my 7/8″ mark.
My muslin won’t have a pocket for the initial fit. I want to see how the pant shell fits first and then most likely, after any changes, I’ll re-draw a new pattern piece for the pockets.