Monroe 122PD II Instruction Manual page 18

Example: Compare a previous amount of $125 to a present amount of $150. What is
the amount of increase or decrease and the percent of change?
ENTER DEPRESS
125
150
Percent Change
+ F 0 1 2 3 4
↓ 5/4 ↑
d pd n
TAPE RESULT
%
=
%
125.00
150.00 =
25.00 *
20.00 %