E-13
C
C
Percentage Calculations
• Use the COMP mode for percentage calculations.
•
Example 1 :
To calculate 12% of 1500
1500
-
12
A
v
•
Example 2 :
To calculate what percentage of 880 is 660
660
\
880
A
v
•
Example 3 :
To add 15% onto 2500
2500
-
15
A
v
+
•
Example 4 :
To discount 3500 by 25%
3500
-
25
A
v
,
•
Example 5:
If 300 grams are added to a test sample
originally weighing 500 grams, what is the percentage
increase in weight?
100
160 (%)
300
+
500
A
v
•
Example 6:
If temperature changes from 40
°
C to 46
°
C,
what percentage did it rise?
100
15 (%)
46
,
40
A
v
0.5
00
1 2.
00
180.
00
75.
00
2625.
00
160.
00
2875.
00
300
500
500
15.
00
46
40
40
