I don't understand this equation either.
The lower No. is usually for the higher priced share,igo and the higher No. for the lower priced share.
So 1 igo share for 7 wsa shares
1 for 3 would be closer to the mark.
It's certainly not 1 wsa for 7 igo
I must be having a bad day as I usually know how it works as have been involved with this type of thing before.