I would just multiply that amount by the number of months that were late. 

If you are new to flipping, the good rule of thumb is whatever your renovation estimate is, multiply it by 2 and that's your real number.

I then take this multiple and multiply it by SQFT.

Get the fmv-repairs-8%closing cost then multiply by 75% to get what it's worth .

A few dozen rehabbers agreeing to focus on single blocks north + south of Fleet, would create a multiplier effect.Rehab properties block by block starting at I-77 and sweep east.

To be confident moving forward, I would check Rent comps for my terminal product's units, draw that up into GOI, calculate expenses or just multiply by 0.7-0.75 to subtract annual expenses (utilities, maintenance, taxes, insurance, etc) and arrive at NOI, then subtract my other expenses (like debt payments) over the year, to see what we're looking at in potential CF once fully stabilized. 

I take a perimeter of the room, which is (12+10)*2 then I multiply it by the height, which is 8 feet.

Multiply that by 10 houses for example, 4 stays per month on average.

Multiply the property value by the mill levy and divide by 1,000 to get the annual tax.

We must multiply them.