(loan amount / 1,000 ) x multiplier ... you can now do your own arithmetic
{ and I strongly suggest you do !! }
total = principal + all interest
a point = 1% of the loan.
next to last: mo pmt - interest (you calc) = reduction in principal
last: confusing wording. Should say "you PLACED {past tense} 10% down against the full asking price" <-- but that is not relevant, unless you want to know selling price of house. You want to solve " what $ x 1.04 = actual loan of $210,000?"