The formula to calculate the Incline Rate (INCR) is:
\[ INCR = \frac{EG}{HD} \]
Where:
Let's say the elevation gain (EG) is 500 feet and the horizontal distance (HD) is 2000 feet. Using the formula:
\[ INCR = \frac{500}{2000} = 0.25 \text{ ft/ft} \]
So, the incline rate is 0.25 ft/ft.