Question about HP 10s Scientific Calculator

# I cant calculate 25+10%, when I try it the answer is 350. What is worong?

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Try this:
2 5 * 1 0 SHIFT % +
where * is the multiplication key.

Pressing 2 5 + 1 0 SHIFT % calculates the percent change when 25 is added to 10, which is 350%.

Posted on Jan 04, 2011

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Posted on Jan 02, 2017

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