Reference Grant industries is evaluating whether to invest in solar panels to provide some of the electricat needs of its main effice building in Huffalo. anticipated that the solar panels would have a Ille of 20 years and would have no residusi value Read the ceacirements Requirectent 1. Calcalate the paytack peried in years of the solar panei propect Dotormine the formuta, then calculate the payback period (Reond your answer to beo docincit places)