The purpose of Cost-Per-Hire (CPH) is to measure the economic value of the effort taken to fill an open position in an organization. ISO/TS 30407:2017 describes actions to be taken when calculating CPH to maintain quality and transparency, including creating a representative data set, using a transparent source of data, minimizing data errors and ensuring that periodic audits of processes occur on data input.

Central to CPH as described in ISO/TS 30407:2017 are the features of the visual display of the metric, emphasizing transparency of data inputs, processes and the formula used within the metric.