Please help me with a pattern. I am intermediate knitter but dont normally work off patterns so dont understand them completely. With the following pattern I dont understand how I go from 130 stiches to 110. I am sure I am just being dim !

[130 sts starting] K4, k2tog (k4, k2tog) 9 times, k10, k2tog, (k4, k2tog) 9 times, k5 [110 sts]

I have tried the math and I cant figure it out. My math is (10x9) + (16x9) + 5 = 239 stiches?

Thank you for my help