Calculated Industries 9530 Pocket Reference Guide - Manual (Page 5)

User’s Guide — 1
KEY DEFINITIONS / FUNCTIONS
Standard Calculator Keys
o – On/Clear
Turns power on. Pressing once clears
the display. Pressing twice clears all
temporary values.
O – Off
Turns all power off, clearing all
non-permanent registers.
r – Recall
Used to recall stored values.
s – Store
Used to store values.
C – Convert
Used to convert between time
formats or to access second functions.
0 through 9 and •
Keys used to enter digits.
+ – x ÷ =
Basic arithmetic operation keys.
% – Percent Key
Four function ( +–x÷) percent
key.
C % – Delta Percent
Calculates the percentage difference
between two numbers.