Arrange the following steps in the correct order for a firm to determine the optimal number of workers to hire in a perfectly competitive labor market?

To determine the optimal number of workers to hire in a perfectly competitive labor market, a firm first needs to understand the demand for its product and how hiring more workers affects its production. Next, it calculates the marginal product of labor, which is the additional output produced by hiring one more worker. The firm then compares the marginal cost of hiring an additional worker, which is typically the wage paid, to the marginal revenue generated from the additional output. When the marginal revenue equals the marginal cost, the firm knows it has found the optimal number of workers to hire. For example, if hiring one more worker increases production enough to cover their wage and adds to profit, then that is a good decision for the firm.