Submission Provide any and all spreadsheets, using the format below for the final summary of costs. Include any and all assumptions used and references for this research. Summary of Costs Cost Supervisor Helper Union mechanic Union operator Union labor Excavator average cost 1650 dozer Compact track loader (track skid steer) Cost per hour Margin Hourly rate Billable Hourly Cost Billable Monthly Cost Projected Qty. Projected Projected average cost unit per hour cost per weeks per Projected billable Projected gross cost spread per hour year hours per year worked week