Hello
I’m assuming you are working in the front but have not yet done the back, is that right?
The shape raglan prior to the ** is to cast off in pattern.
Up to this point you have been working a 4 row pattern and you will continue this same pattern I the next 2 rows but at the same time cast off (bind off) 3 stitches at the beginning of the row. This means work one stitch (knit or purl depending which row in the pattern you are on) then work a second stitch. 2 stitches on the right needle, lift the first over the second and off the needle, leaving one stitch on the right needle. Do this 3 times, each time working knit or purl depending on the instruction in the row you are on. Work the rest of the row as normal.
This will reduce by 6 in total.
If you are working the front then after these 2 rows you go back to the front instruction and work the instruction for 1st size.
Is this what you needed? Let us know if you need more help.