Determine the average rate of return for a project that is estimated to yield total income of $277,440 cver four vears, hat a coet of $497,100, and has a $80,900 residual value. Round to the nearest whole number. Average flate of Return Determine the average rate of return for a project that is estimated to vield total income of $277,440 over four years. fas a cont of $497,100, and has a $80,900 residual value. Round to the nearest whole number