WW Scale Reading Question

Hey all, sorry for the daft question, but how are the ww scales set to stones read?

See image:

Is that 9.06 stone OR is it 9 stone + 6 lbs?

My CD has weighed me 2x and I don't know what I've lost as the scale said 16: 1 (note the space) and a week later 15: 3.

So, how many lbs have I lost this week?

I make it 12lb you've lost, if you were 16st 1lb and now 15st 3lb.

I make it 12lbs lost if you were 16' 1lb & are now 15' 3lbs.

xx