Suppose that the market can be described by the following three sources of systematic risk with associated risk premiums. Risk Premium Factor Industrial production (I) Interest rates (R) 60 3 8 Consumer confidence (C) The return on a particular stock is generated according to the following equation: r = 12%1.1/+ 0.5R + 0.70 C+ e a-1. Find the equilibrium rate of return on this stock using the APT. The T-bill rate is 5%. (Do not round intermediate calculations. Round your answer to 1 decimal place.) Equilibrium rate of return %