Help on while loop to make user enter an accepted value

I need to have the user enter a number between 0 and 100, and have a while loop that prompts them to re-enter the value if they input one that is not valid.

using this format I can only make it work in the reverse of what I need

pC = input('enter initial volume of water, in percent of total tank capacity:','s')

while ((pC<0)&(pC>100))
    if (pC>=0)&(pC<=100)
        pC 
    else input('enter initial volume of water, in percent of total tank capacity:','s')
    end
end

any advice would be greatly appreciated

Answer 1

[DGM]

pC can't be <0 && >100

This should fix the issue and simplify things

pC = -1; % initialize     
while (~isnumeric(pC) || (pC<0) || (pC>100))
    pC = input('enter initial volume of water, in percent of total tank capacity: ');
end

pC