The buyer offers $1,020,000 to buy the house. Total cost of the house plus tax is $891,000. Our profit is $107,172.
1. I paid for interest of bank, property tax, and monthly payment.
2. You paid for TV, washing machine, fridge, shipping, etc.
I suggest we do not consider these cost in the calculation of profit.
We split the profit into half, so each of us get $53,586
You gave me $90,000 for the house and add your profit, you will get $143,596.
Is this type of information enough for you or do you need more detail?