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 (HP48/49/50 only), 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.
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: 92
returns 400, because 500 centimeters represents an increase of 400% over 1 meter.
The HP48 and HP49/50 handle symbolic inputs differently.HP48: HP49/50:HP49/50 maximum integer inputs: no limit.