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Mathematical Calculations
29
To find a percentage of a given number, enter the number and multiply it by the desired percentage, followed by =. For
example, to find 25% of 200, press 200*25%= to return a result of
50
.
To add or subtract a percentage of a number, enter the first number, followed by + or - and the percentage followed
by %. Finish your calculation with =. For example, to add 10% to 50, press 50+10%= to
return a result of
55
.
In RPN mode, the % key calculates
x
% of the number on Level 2 of the stack, when
x
is the number on Level 1 of the
stack. It does not modify the number on Level 2 of the stack, and thus allows you to perform addition or subtraction after
pressing % to add or subtract
x
% from the number.
For example, 200I25% returns
50
, but
200
is still on Level 2 of the stack, and pressing -
returns
150
, or 200-25%.