Raglan armhole

Hi

Please can you assist. I understand the first line of the below, but am getting lost with all the brackets, and when to decrease? I am knitting the third size, so for some of the pattern I should decrease “-“ times

Next row (RS): Sl 1, K3, sl 1, K2tog, psso, K to last 7 sts, K3tog, K4. 95 [107: 121: 133: 147] sts.
Working all raglan armhole decreases as set by last row, dec 2 sts at each end of 6th [6th: 4th: 4th: 4th] and 1 [10: 18: 7: 14] foll 6th [6th: 6th: 4th: 4th] rows, then on 11 [5: -: 14: 10] foll 8th [8th: -: 6th: 6th] rows

Welcome to the forum!

Next row (RS): Sl 1, K3, sl 1, K2tog, psso, K to last 7 sts, K3tog, K4. 121 sts.
Working all raglan armhole decreases as set by last row, dec 2 sts at each end of 4th and 18 foll 6th rows.

Whenever there is a - or 0 or x for your size, skip completely over that direction and go on to the next direction.
The first decrease is row 4 and then rows 10,16,22,28,34,40,46,52, 58,64,70,76, 82,88,94, 100, 106 and 112.
Remember to dec 2sts at each end. It helps to highlight or circle the directions for your size just to help reading the pattern. Good luck with it!

Thank you for the feedback.