Reading Time: 5 minutes Most headcount decisions get argued on feel: culture, commitment, control. The numbers rarely make it onto a slide, and when they do, someone compares a $175,000 salary to an $11,200 monthly invoice and stops there. Below is the full model, with payroll load, vacancy cost, the ramp curve week by week, and the exact hourly rate at which the two options cross. TL;DR A US...