Interesting that in the stitch count field for gauge only a whole number can be entered. The length measured can be a decimal. For example I could not enter 17.5 stitches over 5 inches, I had to enter 19 and 5.5 inches.
Oh dear. I need to fix that. In the meantime you could also double both figures and enter 35 over 10 inches and it will correctly calculate the number over 4 inches. Thanks for letting me know about that problem. It should come to 3.5 over 4", not 3.45 over 4" as your calculation would do.
It is now fixed. Thanks for the suggestion. Since you have already bought yours, let me know if you would like to have me fix your pattern since you will not be able to change it yourself. (I also sent you an email about this in case you didn't see it. This is why I collect email addresses when you sign up at Phrancko.com.)