FAQ | General and scientific calculators
Category : Features and usage Percent calculation
Why do I get the wrong answer when doing a percent calculation? (HR-8 series)
Make sure that you are following the correct procedure.
Adding 10%: 200 [×] 10 [%] [+]
Subtract 10%: 200 [×] 10 [%] [-]
Adding 10%: 200 [×] 10 [%] [+]
Subtract 10%: 200 [×] 10 [%] [-]
