_N(Title = StrFormat("{{NAME}} - {{INTERVAL}} {{DATE}} Open %g, Hi %g, Lo %g, Close %g (%.1f%%) - Shares: %1.2fM - {{VALUES}}",
O, H, L, C, SelectedValue( ROC( C, 1 ) ), GetFnData( "SharesOut" ) /1000000.0 ));
Depending on the data stored in your database relating to the outstanding shares, you could evaluate a different type of numerical formatting or alternatively format the value as a string using %s.
The format used in my example is simpler than the one shown in the "Symbol Information" window, that based on the value convert it to a string appending a different suffix for Billions, Millions, etc.