Flipping - As Is Value and Renovation Level Tiers

[Tim Ivory]

I was hoping for some insight on the as is value of a home. Say the house has a potential ARV of 450K, but needs 50k repairs. Is the As-Is value of the home 400K? What if the house has mold or something, could it be still be listed on the MLS, and if not, wouldn't that mean the AS-IS value isn't 400K then? I guess more simply, is the as-is value the value it would sell on the mls?

I know I could wholesale the house for 300Kish, so would the AS-IS value be that amount? Are there multiple-as is value's then?

Once I have an As-Is value, I'd like to consider renovation tiers levels. Say the house needs, paints, new carpets, and some patches of drywall, but I only have funds to renovate the patches of drywall replacement. Say the house is worth 300K as-is, after patching the drywall only, about 40 square feet, how much would the as-is value jump by? I'd assume about 2K to fix this issue, but, the house looks terrible with the huge gaps of drywall, so fixing that is the top priority to sell, since it would have the biggest impact on the property from an aesthetic viewpoint. Paint is decent, carpets are barely tolerable. 

Essentially, assuming 300K as is value

1. How much would the property be worth only fixing mold and drywall?

2. How much would the property be worth then with new carpets?

3. Assuming All work is done, the house should sell for 450k

Is there anyway to determine how much more the house will go up in value, by doing so and so work that needs to be done, not talking about upgrade.