Which of the following is NOT a common element in a monthly reporting package?

A monthly reporting package typically includes key financial and operational metrics that help stakeholders assess the performance of a property or portfolio. Elements like aged receivables provide insight into outstanding debts and the property's cash flow position, while actual-to-budget variances are crucial for understanding financial performance relative to plans. The property manager's comments offer qualitative insights into the report, explaining variances and addressing any concerns.

In contrast, details about training programs do not directly relate to the financial performance or operational status of a property. While training programs may be important for staff development and operational quality, they do not typically form part of the standard financial metrics or property performance analysis included in a monthly reporting package. This distinction is why training program details stand out as the option that does not belong in a monthly reporting package.