Percent calculations are also readily available.
You can also save and load data was calculated with memory function.
Now go after the seamless calculations.
Function description
P - XX% XX is in how long? (98,546 P 37 = 36,462.02)
N - XX of XX is a few percent? (10,400 N 7,900 = 75.9615)
IN M - storing memory
OUT M - recall memory
MC - Memory deletion