# Memory calculations, Mark-up calculations, Our calculator – NexxTech 6500542 User Manual

## Page 7

7

Operation

Add 6% sales tax and display the to-
tal amount.

You Press

You See

5.49 × 9 =

GT 49.41

3.29 × 5 =

GT 16.45

1.99 × 4 =

GT 7.96

GT

GT 73.82

+ 6%

GT 78.2492

Note: When you press %, the result
is calculated and GT appears.

Memory Calculations

The memory calculation feature lets
you easily do multi-step calculations.

To add a value to memory, enter the
desired number or calculation, then
press

M+

.

M

appears.

To subtract from a value in memory,
enter the desired number or calcula-
tion, then press

M–

.

M

appears.

To recall a value from memory, press

MR

.

To clear the memory, press

MC

.

M

disappears.

Example: (53 + 6) + (23 –8) + (56 Ч 2)
+ (99 ч 4) = 210.75

You Press

You See

53 + 6 M+

M 59.

23 – 8 M+

M 15.

56 × 2 M+

M 112.

99 ÷ 4 M+

M 24.75

MR

M 210.75

MC

210.75

Example:

2392 + 576

–––––––––– – 73 = – 64.6158192091

786 – 432

You Press

You See

786 – 432 M+

M 354.

2392 + 576 ÷

M 2'968.

MR

M 354.

– 73 =

GT M –
64.6158192091

Mark-Up Calculations

MU

(mark-up) lets you calculate an

item’s selling price based on the cost
and the desired gross profit margin,
and also lets you calculate the gross
profit margin based on the cost and
sales price.