POCKET REFERENCE GUIDE — 28
Finding Slope Ratio/Percent Grade
What is the Slope Ratio and Percent
Grade of a lot that drops 3 Feet 6 Inches
over 20 Feet?
KEYSTROKES DISPLAY
1. Clear calculator:
oo 0.
Solve for Slope ratio
2. Enter Drop (as Height):
3f6ih
HGHT 3 FEET 6 INCH
3. Enter Distance (as Width):
20fW
WDTH 20 FEET 0 INCH
4. Find Slope Ratio:
Í SLP 0.175
Solve for degree of Slope
5. Find Degree of Slope:
Í SLP 9.93°
Solve for Percent Grade
6. Find Percent Grade:
Í %GRD 17.5
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