The following four factors were identifies and later used to explain the return on a stock and level of sensitivity

GDP growth: =0.6, Rp=4%

Inflation rate: =0.6, RP=5%

Gold Prices: =0.8, RP=6%

Standard and Poors 500 Index Returns: =2.5, RP=8%

The risk free rate is 6%

Using the APT formula, calculate the expected rate of returns on the stock