PERCENT

The button is available only with standard mode and it's used as modifier for the four basic arithmetic operators.

The input sequence for a percent calculation is:

"first" "operator" "second" "percent"

The modification applied by the percent button for each operator are:

Add "second"-% of "first" to "first".

Subtract "second"-% of "first" from "first".

Multiply "second"-% of "first" with "first".

Divide "first" by "second"-% of "first".