A friend phoned today and asked me to explain the following to him. By the time I'd finished, he was more confused than ever. Could someone please spell it out in simple terms?
Smith and Jones buy a property together.
The cost is £288. Smith pays £200 in cash, and he and Jones jointly take out a mortgage for the remaining £88 which they agree to pay off equally, meaning that Jones will end up owning 15%. (£44/£288=15%)
After three years, the property is worth £450 and they decide to sell. £72 remains on the mortgage.
Jones's financial adviser tells him that after paying off the outstanding £72 from the £450 proceeds of sale, Jones will receive 15% of £378, namely £56.7
Jones has done his own calculation: he will receive 15% of £450 (namely £67.5) from which he will have to pay half of the outstanding mortgage (£72/2= £36) leaving him with £31.5
Jones asks why - mathematically and ethically - his financial adviser's calculation is the correct one.