Pattern info
The cable in the pattern is 5 sts along, if you wanted to make more than two on your top, make sure you have 5.

Sizing
Chest measurement : 33 1/2” (34 1/2”, 35 1/2”, 36” 1/2”, 38”, 39 1/2”, 41”, 42”, 44”, 46”, 48”, 50”, 52”)

Gauge
5 rows per 2 inches
8sts per 2 inches
3mm with 8 ply yarn

If you do not have your measurement here, this is the calculation I used
Bust divide by 2 x 8 divide 2 ( if half an inch + 4)