How much does it cost to replace an electrical panel?

Material maybe $500 depending on the brand of the panel and the size. Labor at the most 2 man days at $100/hour, plus permits and inspection. Total about $2500. If the inspector insists on the panel replacement ask exactly why since a split buss panel is not always a code violation. If the inspectors brother is the local electrician ask for a deep discount from both of them.