Howard - we do know the O/S at the time of the PR.
The PR stated that 13% of the current WEHI market cap = $100,000.
You can take the ratio of $100,000/13%=X/100%
Solve to find X, which equals the market cap of WEHI when the PR was issued, which means the market cap (X) was $769,231.
Now, divide the market cap by $0.0001 share price to find the approximate number of shares issued. $769,231/$0.0001 = 7,692,308,000 shares.
Apparently, the person that checked with the Transfer Agent for WEHI indicates there are even more shares out.