9
Measuring straight out along the shoulder seam (the top edge of the fabric) from
the centre folds, make a mark at 9 cm (3½ in.). Divide your back measurement by two and add 1.2 cm (½ in.), and mark that measurement on the shoulder seam.
Working from the same corner, measure 9 cm (3½ in.) down the centre fold. To 10 create the neckline, draw a scoop that joins the two 9-cm (3½-in.) marks.