Suficients Hints: Enter the levels by yourself.
counts=input('Enter the Total Cetegory');
p=[];
i=1;
while i<=counts
p(i)=input('Enter the % Category: ');
i=i+1;
end
if sum(p)>100
disp('Invalid Entry: Sum Greater than 100');
elseif sum(p)==100
%Plot pie p
else
other=100-sum(p);
p=[p,other]
...%Plot P
end