The Department of Transportation estimated a linear relationship between an individual's transportation expenses per week and the distance an individual lives away from work. From sampling workers around Brisbane, the Department constructed the following regression equation: T = 12 + 2.35D where T is the transportation expenses per week (in dollars) and D is the distance away from work (in kilometres). If the sum of squares of X and sum of squares of residuals are 60.76 and 75.46, respectively, calculate the coefficient of determination. Answer as percentage, correct to two decimal places