Cleverclogs is short of labour for a new one-off project needing 600 hours of labour and has choices as to where to source this. He could hire new people temporarily from an agency at a cost of $9 per hour. Alternatively he could recruit new temporary staff at a fixed cost of advertising of $1,200 but then only pay $6 per hour for the time. He could also redirect some staff from existing work who are currently paid $7 per hour and who make sandals that generate a contribution of $3 per hour after all variable costs. Sandals are a good selling product and Cleverclogs will lose the production and the related sales whilst staff is working on the new one-off project.
What is the relevant cash flow?