Percentage Calculations - Casio fx-115WA User Manual

Percentage Calculations

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