Shoulder shaping

Hi everyone.
I’m knitting a poncho and have come to the shoulder shaping and I am stuck.
Pattern reads:
Working all shoulder decreases as set by last row, dec 1 st at each side of marker as before on 2nd and foll 11 alt rows and at same time dec 1st at each end of 8th and 0 foll 8th row,then on 2 foll 6th row then on 1 foll 4th rows
Could someone simplify this for me please.
Thank you.

I usually write these out and then cross off the rows as I make the decreases. Dec at each side of the marker on rows 2,4,6,8,10,12,14,16,18,20,22 and 24. At the same time dec at each end of rows 8, 14, 20 and 24.

Oh! Thanks so much. :blush: