You either know the sale price and want the cost price or the other way around. Either way there isn't enough information there to answer the question. The method is: net= sales - costs. So: $108373 = sale price - (0.06 * sale price) - (0.005 * sale price) - $7000 - $625 - $125 - $186353 - cost price This gives an equation which can be rearranged to find cost in terms of sale, or sale in terms of cost, depending what you know.

(Conclusion) Because falling price of house, I had my money $ 62,156.3 stolen. Because simple addition of negative and positive. = [ (+108,373) - (+186,352) ] = [ (+108,373) + (-186,352) ] = [ (-186,352) + (+108,373) ] = [ (-186,352) - (-108,373) ] = [ (-77,979) ] = [ (+108,373) - (+186,352) ] = [ (+108,373) - { (+186,352) } ] = [ (+108,373) - { (+108,373) + (+77,979) } ] = [ (+108,373) - (+108,373) - (+77,979) ] = [ { (+108,373) - (+108,373) } - (+77,979) ] = [ { ( 0 ) } - (+77,979) ] = [ ( 0 ) - (+77,979) ] = [ ( 0 ) + (-77,979) ] = [ (-77,979) ] ( 0. ) Sale price : ? ( 1. ) Net earning: 108,373$ ( 2. ) Realestate Commission : 6% ( 3. ) Transfer tax : 0.5% (1/2%) ( 4. ) Closing costs : 7,000$ ( 5. ) Legal fees : 625$ ( 6. ) Fest insfection fee : 125$ ---------------------------- 7. Mortgage payment: 186,352$ ---------------------------------------------------------- Sale price ( 0. ) [^^^] = [ ( 1. ) + ( 2. ) + ( 3. ) + ( 4. ) + ( 5. ) + ( 6. ) = ( 0. ) ] = [ 108,373$ + 6% + 0.5% + 7,000$ + 625$ + 125$ ] = [ 108,373$ + 6% + 0.5% + 7,000$ + 625$ + 125$ ] = [ 116,123$ + 6.5% ] [^^^] = [ 116,123$ : 93.5% = X$ : 6.5% ] * (6% + 0.5%) = 6.5% = [ 116,123 : 93.5 = X : 6.5 ] = [ 93.5X = 116,123 X 6.5 ] = [ 93.5X = 754,799.5 ] = [ X = 754,799.5 / 93.5 ] = [ X = 8072.7 ] = [ 6.5% = 8072.7$ ] [^^^] = [ 116,123$ + 6.5% = ( 0. ) ] = [ 116,123$ + 8,072.7$ = ( 0. ) ] = [ 124,195.7$ = ( 0. ) ] ------------------------------------------------------------ [^^^] = [ (Leavings) ] = [ (124,195.7$) - (8,072.7$) - (7,000$) - (625$) - (125$) - (186,352$) ] = [ { (124,195.7$) - (8,072.7$) - (7,000$) - (625$) - (125$) } - (186,352$) ] = [ { (108,373$) } - (186,352$) ] = [ (108,373$) - (186,352$) ] = [ (+108,373$) + (-186,352$) ] = [ (-186,352$) + (+108,373$) ] = [ (-186,352$) - (-108,373$) ] = [ (-77,979$) ] = [ (-77,979) ] = [ (Debt 77,979$) ] [^^^] = [ (Leaving) ] = [ (+124,195.7) - (+8,072.7) - (+7,000) - (+625) - (+125) - (+186,352) ] = [ { (+124,195.7) - (+8,072.7) - (+7,000) - (+625) - (+125) } - (+186,352) ] = [ { (+108,373) } - (+186,352) ] = [ (+108,373) - (+186,352) ] = [ (+108,373) + (-186,352) ] = [ (-186,352) + (+108,373) ] = [ (-186,352) - (-108,373) ] = [ (-77,979) ] ---------------------------------------------------------- Mortgage payment : If, Mortgage(186,352$) = 100% [^^^] = [ 186,352$ : 100% = (Sale price 124,195.7$) : X% ] = [ 186,352 : 100 = 124,195.7 : X ] = [ 186,352X = 100 X 124,195.7 ] = [ 186,352X = 12,419,570 ] = [ X = 12,419,570 / 186,352 ] = [ X = 66.6 ] = [ 124,195.7$ = 66.6% ] Price of house is fall (-33.4%) [^^^] = [ 186,352$ - 124,195.7$ = 100% - 66.6% = 33.4% ] [^^^] = [ (Falling price of house) < Mortgage payment ] =[ (+124,195.7$) < (-186,352$) [^^^] = [ (+124,195.7$) + (-186,352$) ] = [ (-186,352$) + (+124,195.7$) ] = [ (-186,352$) - (-124,195.7$) ] = [ (-62,156.3$) ] -> I had my money $ 62,156.3 stolen.