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E-12
k
Percent Calculations
Inputting a value and with a percent (%) sign makes the value a percent.
A
Percent Calculation Examples
Example 1: 2 % = 0.02 (
2
1 0 0
)
2
!
(
(%)
w
Example 2: 150 × 20% = 30 (150 ×
20
100
)
150*20
!
(
(%)
w
Example 3: What percent of 880 is 660?
660/880
!
(
(%)
w
Example 4: Increase 2,500 by 15%.
2500+2500*
15
!
(
(%)
w
Example 5: Reduce 3,500 by 25%.
3500-3500*
25
!
(
(%)
w
Example 6: Reduce the sum of 168, 98, and 734 by 20%.
168+98+734
w
-
G
*20
!
(
(%)
w
Example 7: 300 grams are added to a test sample originally weighing 500 grams,
producing a final test sample of 800 grams. What percent of 500 grams is 800
grams?
(500+300)
/500
!
(
(%)
w
Example 8: What is the percentage change when a value is increased from 40 to 46?
(46-40)/40
!
(
(%)
w
002
30
75
2875
2625
1000
800
160
15
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