How do you calculate the percentage slope?

To calculate the percentage slope, you take the vertical change (rise) and divide it by the horizontal change (run). This division gives you a fraction that represents how steep the slope is. Multiplying this fraction by 100 converts it into a percentage, making it easier to understand in practical terms. This method is a standard mathematical approach to determining the gradient of a slope, whether in construction, landscaping, or civil engineering contexts.

For a clearer picture, the "rise" refers to how much elevation changes over a certain distance, while the "run" is the horizontal distance over which this change occurs. This formula is particularly important in fields that deal with septic system installations, road construction, or any project where understanding land slope is critical. By using rise divided by run, you can ensure accurate assessments of drainage and stabilization needs in an area, contributing to effective site planning and development.