- 1 ed out of 2 question On 25 August 1990, Lulu bought an investment property for $80319. TWO days later she also paid stamp duty of $30,000. She has no other records of her expenses in relation to the costs. Lulu sold the property in January 2020 for $500,000. Required: Calculate the INDEXED COST BASE of the property. Only enter numbers & round to the nearest dollar