Percentage calculations – HP 33s User Manual
Page 313
ALG:
Summary
C–3
To Calculate:
Press:
Display:
12
3
12
3
:/
8)
64
1/3
(cube root)
3
64
º
/
)
Percentage Calculations
The Percent Function.
The
Q
key divides a number by 100. Combined with
or
, it adds or subtracts percentages.
To Calculate:
Press:
Display:
27% of 200
200
z
27
Q
º0/
)
200 less 27%
200
27
Q
.0/
)
12% greater than 25
25
12
Q
-0/
)
To Calculate:
Press:
x
% of y
y
z
x
Q
Percentage change from y to x. (y
≠ 0)
y
| T
x
Compare these keystrokes in RPN and ALG modes:
RPN Mode
ALG Mode
27% of 200
200
27
Q
200
z
27
Q
200 less 27%
200
27
Q
200
27
Q