Casio FX-82MS 2 - Calculating Percent Change; Rounding and Scientific Notation; Rounding to Decimal Places; Scientific Notation Input

What is the percent change when a value increased from 40 to 46?
Steps using calculator: 46-40q=
Rounding and Scientific Notation:
Round to nearest hundredths 2.78967
Steps using calculator www12
2.78967=
Round to nearest thousandths 3.557689
Steps using calculator www13
3.557689=
Initialize calculator qw3=
Write in Scientific Notation:
To log in scientific notation: www20
Write 234879727 in scientific notation:
234879727=
Initialize calculator qw3=
Degree, Minutes and Seconds (Sexagesimal Calculation):
Convert decimal to Sexagesimal value
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Steps using calculator
2.25=qx
Convert Sexagesimal to decimal
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Steps using calculator:
2x15x0x=x