I invested in a property with the cost of 3.4 Mb. I paid 3 equal payments (months) of 100,000 b for renovating the property. At month 8, I paid 100,000 b for getting all done. 18 months after buying, I can sell the property for 5.8 Mb but I have to pay 300,000 b for commission and 200,000 b for title changes. What is the rate of return in this case?

MARR=15% per year.

Find PW, AW.

(Mb = million baht)

(b = baht)