A 60,000 square foot suburban retail property in Fort Worth, Texas with 600 surface parking spaces was purchased for $6,000,000 at a cap rate of 6.0% with a 60% LTV interest-only loan at a 6% annual interest rate. If after six years the property appreciated by 60%, what would be the amount of the owner's equity in the property at that time? $9,600,000 $3,600,000 $6,000,000 $2,400,000