Staff ratios are then used to allocate total requirements to various non-key categories or groups. - Historical data on the department's workload - Number of employees in the department concerned Productivity ratios P= [Workload / Number of people], see if it was constant or systematic? After establishing this relationship, HR requirements can be calculated by dividing the predicted workloads by P. Predicting HR requirements. A ratio such as output in units per hour worked for the entire organizational unit can then be calculated. - Production levels (per unit of period) - Value added (outputs - inputs) - Endowment level Regression analysis Construct a regression model (linear - simple or multiple - or curvilinear) to establish the correlation between endowment levels and other related data, and define this relationship by an equation used for prediction later. Predicting workload indicators helps identify HR