P
OCKET
R
EFERENCE
G
UIDE
— 17
PERCENTAGE CALCULATIONS
The Percent key (
%
) can be used for finding
a given percent of a number or for working
add-on, discount or division percentage
calculations. It can be used with any type
of number, in any dimension (Feet, Inch,
Millimeter, etc.) and any type of convention
(non-dimensioned, Linear, Square or
Cubic).
Computing Percentages
Find 18% of 500 Feet:
KEYSTROKE
DISPLAY
5 0 0 f x 1 8 %
90
FEET
0
INCH
Add 10% to 137 Square Feet:
KEYSTROKE
DISPLAY
1 3 7 S f + 1 0 %
150.7
SQ FEET
Take 20% from 552 Feet 6 Inches:
KEYSTROKE
DISPLAY
5 5 2 f 6 i – 2 0 %
442
FEET
0
INCH
Divide 350 Cubic Yards by 80%:
KEYSTROKE
DISPLAY
3 5 0 C y ÷ 8 0 %
437.5
CU YD
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