Manpower training and development is positively related to productivity at Zenith Bank Plc. The study examined the relationship between manpower training costs and profitability at Zenith Bank Plc's Maitama branch in Abuja, Nigeria from 2001-2010. Data was collected through questionnaires and the bank's financial statements, and analyzed using chi-square tests and regression analysis. The results showed a significant positive relationship between the cost of manpower training and the bank's productivity and profitability. The study concluded that manpower training improves employee skills and performance, leading to higher productivity and profits for the bank.