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Calculated Industries 9130 User Manual

Page 9

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8 — Time Master II

OPERATING BASICS

Basic Math

Your calculator uses standard chaining
logic, which simply means that the
calculations are made in the order
entered.
Keystroke Display

3 + 2 =

5

3 – 2 =

1

3 x 2 =

6

3 ÷ 2 =

1.5

Percent Calculations
The percent

% ]

key is used for finding a

given % of a number or for working
add-on, discount or division
% calculations.
Keystroke Display

3 5 5 x 1 5 %

53.25

2 5 0 + 6 5 %

412.5

2 5 – 5 %

23.75

1 0 0 ÷ 5 0 %

200.

Delta %

The

function finds the

% change between two values. The

=

key must be pressed to complete the
calculation.
Keystroke Display

1 0 C % 1 5 = ]

50.

1 0 0 C % 2 5 =

-

- 75.