Fabulong hair weights

Hiya,

I'm really confused and not sure if it's me being divvy. I got a price list through from fabulong.

Based in their price list
100 gram of 12 inch hair in stick tip is 200 strands... so 0.5gram per strand and 100 gram of 22 inch hair in stick tip is 140 stands... so 0.7grams per strand?

Is that right? 0.7grams for 22 inch seems like it would thin out a lot!

If someone could explain it to me I'd appreciate it lol

Thanks xx