#13 Percentile

[PrivateVoid]

Given an ArrayList of Numbers and a number inside of
that ArrayList figure the percentile of the single number.

[chaturang]

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( I am explaining with an example so its easy to understand )

the formula goes like this ::

percentile of a candidate:: what % of candidate have less
marks than the candidate

Calculate as follows:
let N be the total number of candidates
let n be the candidates who have same marks

then all candidates will have same percentile whose
score

P=( N - summation( from(c= 1 to r ) n ) ) * ( 100 / N )