## (“Percent Change”)

Keyboard Access: X Y (Y/X-1)*100HP-28: the key HP48S: MTH PARTS NXT HP48G: MTH REAL HP49/50: LS-MTH REALPercent Change Function: Returns the percent change from x to y as a percentage of x.If both arguments are unit objects (

HP48/49/50only), the units must be consistent with each other. The dimensions of a unit object are dropped from the result, but units are part of the calculation.Examples:

If a price goes from $4 to $5, what was the percent increase?

25 (it increased by 25%)If a price goes from $5 to $4, what was the percent decrease?

-20 (it decreased by 20%)On a test with 38 questions, a student got 3

wrong. What’s his grade?

92 (His grade is 92%)

Same as: 92returns 400, because 500 centimeters represents an increase of 400% over 1 meter.

The

HP48andHP49/50handle symbolic inputs differently.HP48: HP49/50:HP49/50maximum integer inputs: no limit.BYTES: 2.5