Calculated Industries 4320 - Manual (Page 34)

P OCKET R EFERENCE G UIDE — 33
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?
KEYSTROKE DISPLAY
1. Clear calculator:
o o 0.
Solve for degree of Slope
2. Enter Drop (as Depth):
3 f 6 i d
DPTH 3 FEET 6 INCH
3. Enter Distance (Width):
2 0 f W WDTH 20 FEET 0 INCH
4. Find Degree of Slope:
Ç d SLP 9.926246°
Solve for Slope ratio
5. Find Slope Ratio:
d SLP 5.714286
Solve for Percent Grade
6. Find Percent Grade:
Ç W %GRD 17.5
4320PRG-E-A 6/16/04 7:53 AM Page 33