The Valentine Ski Company makes top-of-the-line custom snow skis for high-end ski shops and employs eighteen people at $19 per hour. Chris, the owner, wants to track several productivity performance measures using the data shown below. Financial Information Net sales 2021 Results $215,000 Cost of goods sold $34,000 (purchased items) Net income after taxes $26,400 Current assets $64,000 Current liabilities $23,000 Avg. inventory value $5,200 Inputs and Outputs Skis produced 1,000 Labor hours Lease payments 12,240 $23,000 a. Calculate the labor productivity, lease productivity, and material productivity. Do not round intermediate calculations. Round your answers to four decimal places. Labor productivity: 0.0816 skis/labor$ Lease productivity: 0.0435 skis/lease$ skis/material$ Material productivity: 0.0294 b. Calculate the multiple-factor productivity. Do not round intermediate calculations. Round your answer to four decimal places. 0.0144 skis/$ If the multiple factor productivity for 2020 was 0.004 skis/dollar, then what was the productivity growth from 2020 to 2021? Do not round intermediate calculations. Round your answer to two decimal places. Use a minus sign to enter a negative value, if any.