Please show work in excel!

The following unemployment tax rate schedule is in effect for the calendar year 2016 in State X, which uses the reserve-ratio formula in determining employer contributions: Reserve Ratio Contribution Reserve negative.......................................... 7.3% 0.0% or more, but less than 1.0%.......................6.8% 1.0% or more, but less than 2.0%.......................6.5% 2.0% or more, but less than 3.0%.......................6.2% 3.0% or more, but less than 4.0%.......................5.9% 4.0% or more, but less than 5.0%.......................5.5% 5.0% or more.......................................5.0% Big Company, which is located in State X. had an average annual payroll of $603,000 for the three 12-month periods ending on September 30. 2015. As of September 30.2015. the total contributions that had been made to Big Company's reserve account in excess of benefits charged. amounted to $11,000. Compute: a) Big Company's reserve ratio for 2016 ___________________ b) 2016 SUTA combination rate for the company _____________________ c) Smallest contribution that the company can make in order to reduce its tax rate if State X permits voluntary contributions ____________________________ d) Tax savings, if any, realized by the company, taking into consideration the voluntary contributions made in (c) if the taxable payroll in 2016 is $710,000