1% is earned by IB Thailand, and 4% is earned by Centili ltd, which gives total of 5%, which is overall margin. So for example, IB Thailand collects from Operators 100 THB, and recognises this as revenue. On other side Centili ltd has paid out to Merchants who are selling this digital goods 95 THB, so Centili recognises expense of 95 THB. Centili invoice IB Thailand for 99 THB. I have increased IB Thailand margin to be 2%. We can not increase it further