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• Example 5: To discount the sum of 168, 98, and 734 by

20%

(800)

168 + 98 + 734 = g A j 1

p 1 - 20 A v ,

*As shown here, if you want to use the current Answer

Memory value in a mark up or discount calculation, you

need to assign the Answer Memory value into a variable

and then use the variable in the mark up/discount

calculation. This is because the calculation performed

when

v is pressed stores a result to Answer Memory

before the

, key is pressed.

• Example 6: If 300 grams are added to a test sample

originally weighing 500 grams, what is the percentage

increase in weight?

(160%)

300 + 500 A v

• Example 7: What is the percentage change when a value

is increased from 40 to 46? How about to 48?

(15%, 20%)

46 , 40 A v

e e e e e e 8 =

k Degrees, Minutes, Seconds

Calculations

•You can perform sexagesimal calculations using degrees

(hours), minutes, and seconds, and convert between

sexagesimal and decimal values.

• Example 1: To convert the decimal value 2.258 to a

sexagesimal value and then back to a decimal value

2.258 =

2.258

A O

2°15°28.8

2.258

• Example 2: To perform the following calculation:

12°34’56”  3.45

I 34 I 56 I - 3.45 =

43°24°31.2

1 2 ... 11 12 13 14 15 16 17 18 19 20 21 ... 39 40

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