Profitability ratios help measure management's ability to control expenses and earn profits through the use of organizational resources. 利潤率有助於衡量控制費用和利用組織資源獲取利潤的管理能力。
The project manager controls the assigned project resources to best meet project objectives, while the PMO optimizes the use of shared organizational resources across all projects. 項目經理控制分配給項目的資源，以便最好地實現項目目標，而項目管理辦公室在所有的項目中以最優的方式使用共用的組織資源。
