How much does it cost to install a step?

Excuse me, could you please clarify for me how much it would typically cost to install a step? I'm interested in understanding the financial aspect of this project, and I'm wondering if there are any variables that could affect the price. For instance, would the material used, the size of the step, or the location of installation have an impact on the overall cost? I'd appreciate any information you could provide on this matter.