Look like i said, it doesn't matter; a $100 dividends without...

Look like i said, it doesn't matter; a $100 dividends without franking credit is the same as $70 with franking credit. When you calculate yield you don't just look at the dividend they company say it will distribute, you need to find out the franking portion. Franking credit isn't always 30%, some companies have less, just because it say it has franking credit, doesn't mean it will be 30%. So it's your job to find out how much franking credit the dividend will get, if it's 0 then you do (dividend + 0), if its 30% then it's (dividend + 30%), if it's 26% (dividend + 26%). That's how you calculate yield on dividends. That's what it means by gross up.