Burda Style For people who sew

Now, from the point A, you will measure the ARMSCYE_DEPTH plus 0.5 cm (or 1/5") to point B. The ARMSCYE_DEPTH is half the circumference of the arm at the shoulder joint. However, it may be easier to estimate the ARMSCYE_DEPTH from the bust measurement, as follows :
Metric (BUST -> ARMSCYE_DEPTH) : 76 cm -> 19.8 cm; 80 cm -> 20.2 cm; 84 cm -> 20.6 cm; 88 cm -> 21 cm; 92 cm -> 21.4 cm; 96 cm -> 21.8 cm; 100 cm -> 22.2 cm; 104 cm -> 22.6 cm; 108 cm -> 23 cm; 112 cm -> 23.4 cm; 116 cm -> 23.8 cm; 120 cm -> 24.2 cm; N.B. For each 4 cm above 120 cm, add 0.4 cm to ARMSCYE_DEPTH
Imperial (BUST -> ARMSCYE_DEPTH) :30" -> 7-4/5"; 32" -> 8"; 34" -> 8-1/5"; 36" -> 8-2/5"; 40" -> 8-3/5"; 42" -> 8-4/5"; 44" -> 9"; 46" -> 9-1/5"; N.B. For each 2" above 46", add 1/5" to ARMSCYE_DEPTH
Please note that these two scales are skewed - in Imperial measurements, bust is incremented by 2", while in metric measurements, bust is incremented by 4 cm, not 5 cm which would be the equivalent of 2". Hence you are better off deciding which system of measurements to use and converting within that system, than to constantly convert from metric to imperial and back or vice versa. Note that in the diagram, ARMSCYE_DEPTH is referred to, simply, as ARMSCYE.