Suppose the market wage for workers hired by an infrastructure project is $40 per hour and the value of the leisure time for unemployed workers is $ 20 per hour. The project will require 2000 worker-hours in the construction process. Assume 20% of the workers hired by this project will be sourced from employment elsewhere in the economy, and the other 80% would otherwise be unemployed. Calculate the dollar value of the total cost of labour to be included in the Social CBA. Do not include the dollar sign $