1. (200000*2.25%)+(65000*1.75%)
2. (200000*2.25%)+(300000*1.75%)+(94000*1.55%)
3. (200000*2.25%)+(30000*1.75%)=9750
16000-9750=6250
so 6250 is the amoiunt he got commision for for every dollar over 500000
6250/1.55%=403225.8065.....
500000+403225.8065.....=903225.8065....
So the house was...