Jeannette Wicks-Lim does the math:
Each time a minimum wage hike is put on the table, the political debate spins on the question of whether such a move would cause business costs to increase so much that jobs are lost. To progress past this perennial debate, one key fact has to be pounded into the American psyche: Average minimum wage hikes impose small cost increases on businesses—so small that businesses can typically adjust by means other than closing their doors or laying off workers. Recent proposals to raise the $7.25 federal minimum present a welcome opportunity to take another whack at this.
Read her piece here.