Using excel $3.$ NIA Motor is an e$-$scooter manufacturer that employs ten people at $$15$ per hour. Assume you were tasked to track productivity performance measures using the data shown in the following table: Financial Information $2018$ Results Net sales $$400,000$ Current assets $$108,000$ Net income after taxes $$88,200$ Current liabilities $$44,000$ Cost of goods sold $($purchased items$)$ $$50,000$ Avg. inventory value $$16,000$ Inputs and Outputs Scooters produced $4,000$ Labor hours $9,600$ Lease payments $$40,000$ a$.$ Calculate the labor productivity, lease productivity, and material productivity. b$.$ Calculate the multiple$-$factor productivity. If the multiple factor productivity for $2017$ was $0\mathrm{.}008$ scooter$/$dollar$,$ then what was the productivity growth from $2017$ to $2018?$