Upgrade from $5 TurboTax Premium to Home & Business

I've got an offer from Fidelity, for $5 I can get a download of TurboTax Premium.  I need Home & Business version.  How much will it cost to upgrade?  Is it still $15 (the difference between two versions' regular price, $115 vs $130), or is it $125 (the difference between $5 and $130)?